What are Rhythm games with custom song support that you enjoy?
I've liked Spin Rhythm XD with custom songs available on https://spinsha.re. There's also OSU which was the first Rhythm game for me.
Beat Saber seems to be another good one, but unfortunately I don't have VR.
Even though I suck at it, I've been playing Rhythm Doctor. It's still officially in early access, but it's already quite polished with a decent amount of official levels and a ton of custom ones done with the included editor.