Lately I have been approaching this from a different angle. I've been identifying the recording engineers on bodies of music I usually like and then using Roon to delve into more of their recordings. Here are a few names to get started. Rudy Van Gelder (Blue Note, Prestige), Fred Plaut (Columbia), Morten Lindberg (2L Records) Joe Boyd (Elektra, Island and actually he's a producer), Roy Goodman (RCA), Val Valentin (MGM and Verve).
Try this and let me know if it pays off for you.