I get this. Loved Tri and Freedom Unite, played a decent amount of 4, some of World, and barely started Rise.
They’re always exciting, and I don’t dislike any of the games, but it’s just a lot to get going, really invest the time, and get the value out of these.
I think this is a really good answer. Just search for a focus playlist on whatever platform and let it run.
If I’m picking out music more specific, I find myself thinking about that, and what it’s like, and if it’s helping, and maybe I should hey this other album or artist.
Don’t let picking the music distract too much from focusing on what you want to do.