A quick list of eight famous albums, all by different main artists, for consideration. Edit #133363628 closes in a few hours, but I don’t think crediting those albums like that would be a welcome change for users of the database.
Miles Davis - Kind of Blue (131 releases) (six musicians printed on cover not part of artist credit)
Cannonball Adderley - Somethin’ Else (36 releases) (four musicians printed on cover not part of artist credit)
Herbie Hancock - My Point of View (34 releases) (six musicians printed on cover not part of artist credit)
Sonny Rollins - Saxophone Colossus (33 releases) (three musicians printed on cover not part of artist credit)
Duke Ellington & John Coltrane (25 releases) (four musicians printed on cover not part of artist credit)
Eric Dolphy - Out to Lunch! (24 releases) (four musicians printed on cover not part of artist credit)
Lee Morgan - Cornbread (23 releases) (five musicians printed on cover not part of artist credit)
Thelonious Monk - Brilliant Corners (22 releases) (three musicians printed on cover not part of artist credit)