PixelFed - PixelFed is a federated image sharing platform, powered by the ActivityPub protocol.
Desktop for Instagram - Browse web mobile Instagram site directly from your Desktop (Pc / Mac)
Gab - Gab is an ad-free social network dedicated to free speech.
Coub - Coub is an app that features GIFs, but the GIFs that you select and send to other people have sounds.
Friendica - Decentralisation - Privacy - Interoperability
Retrica - Discover yourself with Retrica