I don't know what a good source is for finding high quality recordings. By that I mean preservation of dynamic range and soundstage. I've been building up my own playlists of what I think is well-recorded music on Spotify but I am no expert. I just let my ears guide me.
Just today I found the following database. From that I picked out Patricia Barber's Black Magic Woman and it's a real winner. Anything by her is if you like her music: