I have been self hosting since 2008. Went through around 7 different apps since then, and I am currently using Navidrome, which is a fork of Subsonic with the android phone app Symfonium. For a while there self hosting looked pretty bleak around 2020, but it seems to have found a resurgence which I love because the development has been big again leading to more modern looking players and a lot of great new functionality.