I'll be honest, I don't really know what counts as "experimental," but I've been really liking music in this genre that I guess is called "Baroque Metal" or something like that. Igorrr and Keygen Church have been a couple favorites.

More on the jazzy side, I listened to Sungazer's album Perihelion on repeat for like two straight weeks, it's really good

Keygen Church is SO GOOD. I really dig this fusion of metal, glitch (I guess? I don't really know a good term for it lol) and baroque music. I'll check Igorrr out, I've been craving something in that vein for the longest time!

I actually found Igorrr first, and had no idea what I was in for (I was unaware of this genre before I found them). They're fantastic, I hope you enjoy!