MiniDLNA - MiniDLNA (aka ReadyDLNA) is server software with the aim of being fully compliant with DLNA/UPnP-AV...
Ampache - Web ( HTTP centralized ) based audio/video streaming application
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.
YouTube Music - YouTube Music is a streaming app primarily designed for Android and iOS mobile devices. The app lets individuals search for music from their favorite artists, enjoy playlists, and access 30 million musical tracks.
Gerbera - Free UPnP media server based on MediaTomb
Navidrome - Music Server and Streamer compatible with Subsonic/Airsonic.