Diaspora - The online social world where you are in control.
Facebook - Connect with friends, family and other people you know. Share photos and videos, send messages and get updates.
Friendica - Decentralisation - Privacy - Interoperability
MeWe - Used to be called Sgrouples, now its MeWe offered by the company Sgrouples Inc.
Minds - The open-source, encrypted social network that expands your reach for using it.
Discourse - Discourse is an open source discussion platform built for the next decade of the Internet.