Looking for good recordings of female vocals I have not yet tried...

Joan Baez -Ring Them Bells (Live)

Joni Mitchell - no faves

Janis Ian - Breaking Silence

Shawn Colvin - no faves

Mary Chapin Carpenter - no faves (sort of country)

Joanie Sommers - she can sing anything and turn everything into a hit

Connie Stevens

Amanda Jensen

Dusty Springfield

Many great suggestions.  Not mentioned:

Shirley Horn “Here’s To Life” - Gorgeous recording.  Arrangements by the great Johnny Mandel.

Abbey Lincoln “You Gotta Pay The Band” - Bonus: Stan Getz as guest soloist.

Phoebe Snow “Phoebe Snow”.  Fantastic record in a “folksy” vein.  Guest appearance by Zoot Sims.  Bonus: Great sounding, mostly acoustic, recording.

Elis Regina.  Probably the greatest Brazilian female vocalist of all time.  Anything by her is worthwhile,  

Netania Navrath “Chants d’Auvergne” (Canteloube).  Gorgeous music; gorgeous recording.  

Frog Records remastered the entire Bessie Smith catalogue. Back in the day I had the Columbia box set but was disenchanted with the sound quality. The Frog remasters are simply amazing by comparison.

If you like art music, I’ve heard good things about Mediaeval Baebes. I’m going to discover them myself.

https://www.mediaevalbaebes.com/