I am thinking in terms of albums recorded by band members while they are still in the band in question rather than post-departure efforts.
A fair few from the 70s when solo album deals were thrown around like confetti
Ace Frehley - s/t (obviously!)
Rod - Gasoline Alley / Every Picture Tells A Story / Never A Dull Moment
Ronnie Wood - Now Look
Chris Squire - Fish Out Of Water
Steve Hackett - Voyage of the Acolyte
Bryan Ferry - These Foolish Things
Stevie Nicks - Bella Donna
Peter Hammill - Fool's Mate