Metastream - Watch streaming media with friends
Zubtitle - Zubtitle is an online tool that makes it easy to add captions to any video.
Watch2Gether - Watch2Gether is an app that allows multiple people to watch the same content simultaneously and interact with each other while watching.
Streamlabs Podcast Editor - Streamlabs Podcast Editor ― Edit Your Video By Editing Text
Kosmi - Digital Hangouts Reinvented
Kapwing - Collaborative video editor for modern creative teams