Facebook - Connect with friends, family and other people you know. Share photos and videos, send messages and get updates.
BuddyPress - WordPress social networking in a box.
X (Twitter) - Connect with your friends and other fascinating people. Get in-the-moment updates on the things that interest you. And watch events unfold, in real time, from every angle.
PeepSo - PeepSo is a FREE WordPress plugin which allows you to easily create gorgeous user profiles and spectacular communities within your WordPress site.
Mastodon - Mastodon is a decentralized, open source social network. This is just one part of the network, run by the main developers of the project It is not focused on any particular niche interest - everyone is welcome!
Ultimate Member - The easiest way to create powerful online communities and beautiful user profiles with WordPress.