First one that i know of is bandcamp. They let you download the files for use with your own player, they have many file extensions to choose from including MP3, FLAC, WAV, just to name a few that my normie ass recognizes. They also regularly lift their cut of purchases (usually on Fridays) so the artist will get all the money
In short the “Disney canon” includes the 9 saga movies, rogue one and solo, the cartoon network 2008-2013 “the clone Wars” with Dave Filoni, star wars rebels, and star wars resistance. There are also of course tons of books and comics released in this canon as well but I believe there is a little overlap with old canon and Disney canon releases
Editing: here to add and clarify. That the Disney+ shows are indeed part of modern canon I don’t know how I left them out. As well as games like EA battlefront 1, and the multiplayer battles of 2 being a weird semi canon, the EA BF2 campaign and dlc is canon, Jedi Fallen Order and Survivor are canon. The ubisoft game “Outlaws” will also be in canon.