Netflix Party - Netflix Party is an extension for watching Netflix remotely with friends and family for movies nights with that long-distance special someone.
Thank You DJ - Personalized, Data-Driven experience for your guests.
StreamParty - StreamParty is a watch communiry, that allows you to watch video streams in sync with the people you care about, on multiple services.
TrackStack - Easy Spotify playlist sharing and collaboration
Metastream - Watch streaming media with friends
SpotMenu - Spotify and iTunes in your macOS menu bar