Little Richard, Big Mama Thornton and BB King Can You Suggest Best Albums?

Without a doubt -

BB King -  indianola mississippi seeds

just buy it and enjoy it!

@tomcy6 

Qobuz…

I’ll give all above a listen

Nearly anyone, I learned to start with the early stuff, when they made their reputations, and a bit after the best. 

i.e. BB King fell into a kind of caricature of himself: not playing much, not the whole song, a few short display intervals and let the band do most of the rest.

Early stuff, he rips it up thru and thru.

You didn't mention Buddy Guy, stream some Buddy, you will want some Buddy.

@vonhelmholtz 

BB King: I'm partial to "Completely Well" and "Indianola Mississippi Seeds".

Some may regard these as overly produced but there's plenty of excellent guitar and vocal work. 

I doubt you'll be bowled over by the SQ.