For an online music store with DRM free downloads I like Qobuz. Available quality depends on the album/song, but if something is not on Bandcamp it's a good, no-nonsense alternative.
Just tried them... they make you download individual tracks like they've never heard of a zip file, just to make you try their app out of annoyance. Not really no-nonsense :(.
Oof, that's frustrating and a recent change. There used to be a quality selection at the top and a "Download all" button that would download an archive of the entire purchase.
