Kodi - Kodi is an award winning free and open source media player that got its start on the Xbox console.
Mi Box - 4K Ultra HD streaming and gaming box powered by Android TV
Emby - media server for personal streaming movies tv music photos in mobile app or browser for all devices android iOS windows phone appletv androidtv smarttv and dlna.
Caavo - One search. One experience. One remote. All your content.
Universal Media Server - Universal Media Server allows you to host your entire library of video, music, and pictures, and broadcast them conveniently to a wide variety of different devices.
Mi Box S - A 4K UHD media player with Google Assistant built-in for $60