I am amazed Aretha never signed with Motown records, She signed with Atlantic.
When I think of R&B I think Motown (Detroit) and Stax (LA)
These guys were fantastic..
https://www.youtube.com/watch?v=cOYZ_Ms9PZg
Booker T and the MG’s
https://www.youtube.com/watch?v=zlai0BQarrc