PixelFed - PixelFed is a federated image sharing platform, powered by the ActivityPub protocol.
Change My Mind - A platform where people can anonymously discuss and share believes on any topic.
Gab - Gab is an ad-free social network dedicated to free speech.
Staance - State your opinion on politics, tech & more with a click
Friendica - Decentralisation - Privacy - Interoperability
DEBATE-A-BOT - Online debates with bots impersonating politicians