I like any of the Nujabes albums. He makes chilled, mainly instrumental, hip hop music.

Any rando lofi channel on YouTube/Spotify/Online Radio Stations

Something semi ambient, preferably without lyrics: Tycho, Bonobo, Nujabes

Anything from Hammock. The older albums mostly.

In a Space Outta Sound by Nightmares on Wax

Nils Frahm’s Felt, or the soundtrack to Victoria

Atomos or the self titled album by A Winged Victory for the Sullen

Almost anything recent by Carbon Based Lifeforms but Alt:01, Alt:02, or Stochastic especially

Loscil is great but not a single album stands out though Submerz and Endless Falls are smooth

Hammock’s soundtrack for the movie Columbus

Brian Mcbrides The Effective Disconnect

I would recommend Stars of the Lid, but they are too sleepy for me. However, when Brian Mcbride and Adam Witzie do their own thing it is usually less sleep inducing-

Anything by Erang. If you are into medieval mythical themed hymns.

I just added a bunch of classical to a playlist and then removed the occasional piece I found distracting. I still use that playlist when I need to focus.

Anything by Kiasmos. Also Chopin.

Robot Science

Don’t do albums or long playlists, because every time it ends you’ll realize time has passed and you’ll stop studying. Instead pick a song or two or three and just play on repeat so you lose track of time. But if you must, then Toxicity by System of a Down.

I like listening to video game music when studying. I heard somewhere that game designers use their music to keep you playing their game and lose track of time and hyper focused.

There came an echo by big giant circles.

Little Songs About Raindrops - Lullatone

Use something mellow in a different language from your own, it is less distracting.

I like to listen to brasilian Bossa Nova like this Getz/Gilberto Album

Or something without lyrics like Yiruma if you like Piano music.