Guest Post & Contributor Opportunities (categorized)

Tip: read each site's contributor/pitch guidelines before submitting. Some accept topical pitches, some require full drafts, and a few are invitation-only.

Tech & Web Development

• Hackernoon — Submit / Contribute
  Tech community publishing platform focused on developer stories, startups and emerging tech. Open contributor system with editorial review.
• Smashing Magazine — Write for us / Submit
  High-quality articles for front-end developers and UX designers. Strict editorial guidelines; prefers well-researched tutorials and case studies.
• SitePoint — Write for us / Submit
  Longstanding resource for web developers. Accepts tutorial-style contributions and practical how-tos.
• freeCodeCamp News — How to submit / Pitch
  Large developer audience; publishes tutorials, personal stories and technical deep-dives from contributors worldwide.
• Site-specific / community tech blogs (examples) — See contributor pages
  Many product/company engineering blogs accept guest posts or sponsored pieces — look for "Write for us" or "Contribute" pages on product/blog sites in your niche.

Marketing, SEO & Content

• HubSpot Blog — Contributor / Submit
  Marketing, sales and customer service content. HubSpot accepts guest contributions on practical inbound marketing and analytics topics.
• Search Engine Journal (SEJ) — Writers / Contributor guidelines
  Major industry publication for SEO and digital marketers. Publishes news, how-tos, and expert commentary; has contributor guidelines.
• Business2Community — Write for us
  Wide business and marketing audience — accepts contributed posts across marketing, social media, and business topics.
• Copyblogger — Write for us / Contributor guidelines
  Content marketing and copywriting authority. Publishes tactical advice for writers and marketers (strict editorial standards).
• Medium & Publications — How to submit to publications
  Many niche Medium publications accept outside writers — submission process varies by publication (apply to write for each publication first).

Business & Entrepreneurship

• Entrepreneur — How to pitch / Write for us
  Business and startup coverage. Accepts pitches for practical, entrepreneur-focused stories — check their pitching guidelines.
• Inc. — Submit / Pitch
  Business magazine with entrepreneurial content. Pitches typically require a concise angle and real-world examples.
• Forbes (Contributor Network) — Contributor program (by invitation / application)
  Large business audience; the contributor program is selective and often requires vetting or invitation.
• Small Business Trends — Write for us
  Resources for small business owners — accepts practical guides and case studies aimed at entrepreneurs.
• Fast Company — Contribute / Pitch
  Innovation, leadership and design — occasional contributed pieces and pitches considered (editorial selection).

Travel & Tourism

• Lonely Planet — Contribute / Become a writer
  Guidebook publisher and travel journalism — commissions destination features, guides and photography from experienced travel writers.
• Travel + Leisure — How to pitch / Write for us
  Major travel magazine — accepts pitches for destination features, travel culture and experiential stories.
• TravelAwaits — Author guidelines / Submit
  Travel content aimed at mature travellers; accepts contributor submissions with clear guidelines and pay options.
• The Points Guy — Contact / Contribute (editorial contact)
  Focus on travel rewards and practical travel tips — editorially curated; freelance contributors occasionally commissioned.
• AFAR — Write for us / Contributor guidelines
  Travel lifestyle stories and immersive travel experiences; accepts pitches for well-crafted travel features.

Lifestyle, Food & Home

• The Spruce — About / Contributor info
  Home, gardening and lifestyle — publishes expert-led practical guides; editorially selected contributors.
• Allrecipes — Contributor / Recipe submission info
  Large recipe community; accepts user recipe submissions and editorially-selected contributors for features.
• Bon Appétit — Editorial / Pitch (contact page)
  Food culture and recipes; editorially selected contributors and freelance commissions.
• Food52 — About / Contact (pitch info)
  Recipes, product guides and food culture; accepts pitches for original recipes and home cooking features.
• Byrdie — About / Contact
  Beauty and self-care editorial — accepts pitches from experienced beauty writers and experts.

Health, Fitness & Wellness

• Thrive Global — Contribute / Write for us
  Wellness, mental health and productivity; publishes personal essays and practical advice from contributors.
• mindbodygreen — Contribute
  Holistic health and lifestyle — contributor program for subject-matter experts and experienced writers.
• Healthline — Editorial / Contact (freelance submissions)
  Medical and health content with strict sourcing and editorial review — contributors are typically vetted experts or experienced health writers.
• Runner's World — Contact / Pitch
  Running, training and endurance sports — freelance features and training guides commissioned regularly.
• Precision Nutrition — About / Contact
  Nutrition science and coaching — publishes evidence-based articles from qualified contributors.

Finance & Investing

• Investopedia — Contact / Contributor info
  Financial education site — accepts expert-written explainers, how-tos and market-analysis content.
• Business Insider — Contact / Pitch
  Business and finance reporting — editorial pitches considered; many contributions are commissioned by editors.
• The Motley Fool — Contact / Contribute
  Investment education and stock analysis — contributors are typically experienced finance writers or analysts.
• Finextra — About / Contact
  Financial technology news and analysis — accepts contributed commentary from industry professionals.
• NerdWallet — Editorial / Contact
  Personal finance guides and product comparisons — editorially vetted contributions and expert commentary.

Education & Academia

• The Conversation — Why write for us / Contribute
  Academic-led news and opinion — publishes articles written by verified academics and researchers.
• Edutopia — Contact / Pitch
  Practical K–12 teaching strategies — pitches for classroom-tested ideas and teacher stories are considered.
• Open Colleges / Education blogs — Contact / Contribute
  Education and career-focused sites frequently accept expert pieces and career-advice submissions.
• Editage Insights — Contribute / Write for us
  Publishing and research communication — accepts guest posts on academic publishing, peer review and research visibility.
• Khan Academy (community / partner content) — About / Contact
  Educational content platform — partnership and content collaboration opportunities exist for qualified educators.

Design, UX & Creatives

• A List Apart — Contribute / Submit
  Articles about web standards, design and UX — accepts thoughtful long-form pieces and case studies.
• Creative Bloq — Contact / Pitch
  Design, illustration and creative software guides; editorial features and freelance contributions possible.
• 99designs Blog — About / Contribute
  Design community blog with tutorials, case studies and freelance design business tips.
• CSS-Tricks — Contact / Submit
  Front-end development and CSS-focused guides; occasional guest posts and community contributions welcome.
• UX Planet (on Medium) — About / Write for us
  UX-focused Medium publication with a defined contributor process for UX professionals and writers.

Parenting, Family & Lifestyle

• Parents — Contact / Pitch
  Parenting advice and family lifestyle — editorially curated features often commissioned from experienced parenting writers.
• Scary Mommy — Contact / Submit
  Personal essays, parenting culture and humor — accepts pitches for candid, voice-led stories.
• FamilyEducation — Contact / Pitch
  Education and parenting resources — accepts practical guides and family-focused content.
• TODAY Parents — Contact / Pitch (TODAY)
  Parenting stories and personal essays for a mainstream audience — pitches often go through the main TODAY editorial desk.
• Mommy Nearest — Contact / Pitch
  Local family activities and parenting tips — contributor and local correspondent opportunities.

Sports & Outdoors

• Sports Illustrated — Contact / Pitch
  Sports news and features — most contributions are editorially commissioned; occasional freelance features.
• Outside Online — Contact / Pitch
  Outdoor adventure, gear and travel; accepts well-researched feature pitches.
• Cycling Weekly — Contact / Pitch
  Competitive and recreational cycling content — editorial pitches and freelance pieces.
• Outdoor Life — Contact / Pitch
  Hunting, fishing and outdoors — editorially curated contributions and freelance features.
• Runner's World — Contact / Pitch
  Training plans, gear reviews and race coverage — freelance submissions are sometimes accepted.

Entertainment, Media & Culture

• Vulture — Contact / Pitch
  Cultural criticism and entertainment coverage — pitches for reviews and features may be considered by editors.
• Pitchfork — Contact / Pitch
  Music reviews and features — editorial commissions are common; freelance pitches occasionally accepted.
• Rolling Stone — Contact / Pitch
  Music and culture features — mostly editorially commissioned; strong pitches considered.
• The Ringer — Contact / Pitch
  Pop culture, sports and media analysis — editorial pitches and contributed essays considered.
• BuzzFeed — About / Contact
  List-driven features and culture pieces; editorially selected contributors and viral format posts.

Niche Marketplaces & Guest-Post Platforms

• LinkBuilder.io (directory) — Directory / Verified sites list
  Curated list of guest posting sites across niches — useful for discovering high-quality targets.
• BuzzStream (guest post list) — Guide / List
  Collection and methodology for finding sites that accept guest posts; handy for outreach planning.
• Linkio (directory) — Guest post sites database
  Large marketplace/directory listing thousands of guest post opportunities with filtering by niche and metrics.
• Adsy (guest posting marketplace) — Marketplace / Submit
  Paid guest-post marketplace connecting authors/brands to publishers that accept contributed articles.
• WhitePress — Guest posting marketplace
  European marketplace to buy placements and connect with publications that accept external content.

Final notes

1. Some entries above (especially large publishers) use invitation-only or editorial-selection models — reading the linked contributor/pitch page will clarify their current process.