Jukebox - Collaborative music player
Lark Player - Lark Player – YouTube Music & Free MP3 Top Player is a fine tool developed by Mobiuspace Tech Top Player.
Clicker for YouTube - The best standalone YouTube TV player for Mac
Audiomack - The free SoundCloud alternative
Spotify - Map shows when two people play same song at same time
Musicolet - Musicolet is a small yet feature-rich offline Music Player for Android.