Clicker for Netflix - A native Netflix player for macOS with touch bar support
WWDC Together - Watch and discuss WWDC together
IINA - The modern video player for macOS
WWDC app for OS X - An app to view and watch WWDC sessions on your Mac
VLC for Apple TV - Stream all your locally stored videos to your Apple TV
Plex for Alexa - Run your home theater or play your favorite playlists