ShareTube - Watch YouTube, synced with friends.
Togetherly - Watch Youtube with friends
Showgoers - Showgoers is a website dedicated to watching Netflix movies together with friends or loved ones who are not sitting on the same PC.
Netflix Party - Netflix Party is an extension for watching Netflix remotely with friends and family for movies nights with that long-distance special someone.
Tradecraft - Play Codenames online with friends.
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.