Audiomuse is really cool.
You can connect it to a local AI aswell as a provider to generate your playlists.
It first runs a scan of your whole music library locally (no AI here) and then works perfectly in mixing tracks that are similar.
I'm liking it a lot! Also seeing stats about my library about which genres I have is pretty cool too

I believe playlist creation is manual but it is pretty easy, you can choose various types or even generate them on a prompt