10 of the most-installed plugins carry this tag, ranked by active installs. The plugin's author chose the tag, not WPBundle.
#28 by installs
ACF helps customize WordPress with powerful, professional and intuitive fields. Proudly powering over 2 million sites, WordPress developers love ACF.
#138 by installs
Reach more customers and drive sales on Facebook, Instagram and WhatsApp with the official Meta for WooCommerce plugin.
#140 by installs
Grow your business with Meta for WordPress!
#305 by installs
This is a very simple SEO plugin. You can easily set and customize meta tags and OGP tags for each page.
#420 by installs
Secure Custom Fields boosts content management with custom fields and options. It deactivates Advanced Custom Fields to prevent duplicate code errors.
#450 by installs
All-in-one enhancement suite that improves WordPress & Advanced Custom Fields.
#494 by installs
Site metrics and social media analytics for Instagram, Facebook, YouTube, LinkedIn, X Twitter. The single best tool for Social Media Managers!
#597 by installs
Easily add and manage custom meta tags to various parts of your site or on individual posts, such as Yahoo and Google verification tags.
#698 by installs
Smart Custom Fields is a simple plugin for managing custom fields.
#963 by installs
The Custom Field Template plugin extends the functionality of custom fields.
Every figure is read from the WordPress.org plugin directory's public API, and each page links to the entry it came from. “Most-installed” is the directory's own popularity order. WordPress.org rounds active installs into buckets, so “1+ million” can mean anything from one to two million.
These are the directory's numbers, not my verdicts. I haven't tested these plugins. Where I have checked a deal on one, its page says so and links the deal.