There sure is, but what kind of music streaming are we talking about?

For the "mainstream" streaming services, like Spotify, Deezer and SoundCloud, there seems to be Blade Player available from IzzyOnDroid's repository: https://apt.izzysoft.de/fdroid/index/apk/v.blade

IzzyOnDroid is on the F-Droid team. His own repository just has somewhat laxer acceptance criteria. Do mind that if you add that repo to your F-Droid, it may become hard to tell which app comes from which repository.

If you want an open-source streaming service, you can use the Funkwhale app with e.g. the Funkwhale instance https://open.audio .

However, do mind that these are largely Creative Commons songs, so you probably won't find your favorite band on there. The songs can also be rather interesting and/or crap, because there's no music label filtering out the obscure stuff.

Finally, if you want to completely self-host your music streaming, there's for example M.A.L.P. as an MPD client. Then you would also need to setup an MPD server somewhere.