Netflix Party - Netflix Party is an extension for watching Netflix remotely with friends and family for movies nights with that long-distance special someone.
Facebook Live Video and Collages - Show your friends what you’re seeing in real time
Watch2Gether - Watch2Gether is an app that allows multiple people to watch the same content simultaneously and interact with each other while watching.
DUSK - Anonymous live video
ShareTube - Watch YouTube, synced with friends.
Live Video On Tumblr - Tumblr's answer to Periscope, Facebook Live and Twitch