If you like chillhop/jazzhop I just found a good one for ya. I like to listen to these while I work.
@Tfmonkey Do you like Classical music? I am partial to Chopin, Debussy, and Bach cello suites. Might I offer a primer?
@sardonicsmile I have relaxing piano music, but a lot of classical music is a bit too energetic. I do love me some gymnopedies from Satie.
Shostakovich is a favorite for sure.
If you want the ultimate in calm you can do no better than Spiegel im Spiegel by Arvo Part. It's a masterclass on meditative calm and minimalism: