wp-open-social by xiaomac

A WordPress plugin that adds "Sign in with Google" functionality. Maintained by tarecord on GitHub, where it has earned 26 stars from the community.

Socialify - Social Login and support OAuth2 for WordPress based on HybridAuth. Maintained by aiiddqd on GitHub, where it has earned 26 stars from the community.

Authorizer is a WordPress plugin that uses Google, CAS, LDAP, or an OAuth2 provider for logins, and can prevent public access to a WordPress site. It also blocks repeated failed login attempts. Maintained by uhm-coe on GitHub, where it has earned 79 stars from the community.