Best topic cluster plugins for WordPress
The most popular topic cluster plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. Rich Taxonomy leads with 20+ active installs, ahead of Airygen SEO (fewer than 10) and SEOMedic (fewer than 10). All 3 plugins tagged “topic cluster” are below, with figures from WordPress.org that update every day.
Installs aren’t everything: a recent release, a “Tested up to” that matches the current WordPress, and support threads that get resolved show a plugin is looked after. Open any plugin for its downloads, rank history and alternatives.
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Top 3 topic cluster plugins
- 1.
Rich TaxonomyThe most installed topic cluster plugin, with 20+ active installs. No reviews yet, updated 4 months ago.
- 2.
Airygen SEOFewer than 10 active installs. No reviews yet, updated 3 months ago.
- 3.
SEOMedicFewer than 10 active installs. No reviews yet, updated 13 hours ago.
All 3 plugins tagged “topic cluster”
Rich Taxonomy
Up in the last 7 days:372#26,883by Tarosky Inc.4 months ago
A WordPress plugin that enhances taxonomy archives by replacing them with custom Taxonomy Pages.
- Installs
- 20+
- Rating
- –
- Downloads
- 0/day
Airygen SEO
Down in the last 7 days:8,948#71,359by airygen4 months ago
Build topic clusters, find internal linking opportunities, and generate AI-readable files (llms.txt, Markdown) for stronger SEO and GEO.
- Installs
- <10
- Rating
- –
- Downloads
- 0/day
SEOMedic
Down in the last 7 days:9,815#71,838by andrewmurraytoday
Broken link checker and SEO audit in one dashboard: missing meta descriptions, broken YouTube embeds, duplicate H1s, orphan posts and mixed content.
- Installs
- <10
- Rating
- –
- Downloads
- 23/day