The one BGM I go to is DJ Krush. I love his stuff and it really gets me in a mood to work
I like Brian Eno stuff too
Lately, I've been listening to some lo-fi and japanese 80's
Those are more ambient style stuff, but I usually can only focus on doing something when it's texturally consistent, in a way, so I've been listening to a lot of Julien Baker and Lil' Dicky (if you can get behind a little bit of crass humor, because his flow IS crazy)