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.

Anything from Hammock. The older albums mostly.

Bonobo - Dial M for Monkey

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.

Autechre’s NTS Sessions. All of them work great, but start with the fourth one.

Every album by the band Can

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

In a Space Outta Sound by Nightmares on Wax

Jan Garbarek - Visible World

Not really a album but MyNoise.net has a lot of good generators for background noise. Radio Free Fedi’s Comfy channel also is great for chill study music, and it only plays indie artists that have Fediverse accounts with links to the artist support pages where you can either buy their albums (or songs to build your own piecemeal) https://radiofreefedi.net/.

Little Songs About Raindrops - Lullatone

Piano Phase by Steve Reich

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-

Bit of of left field here: The going under OST. Was the soundtrack to my exams

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