Flickcall - Flickcall is a privacy-focused browser extension to watch movies & TV shows together.
Netflix Party - Netflix Party is an extension for watching Netflix remotely with friends and family for movies nights with that long-distance special someone.
Hyperbeam - A better way to watch together online
Scener - A virtual movie theater to watch content with your friends
&chill - Watch YouTube & Twitch videos with people online
Jelly Party - Watch anything together.