can anyone tell me where to find some kind of really large collection of early and legendary blues songs/artists.

I learned to know a lot of new blues artists (actually old ones) and I 'd like to study them and try to play some if posssible, but I always stumble upon not finding any tabs for them,...

artists I think of now are; howlin wolf, albert king, guitar slim, albert collins, earl hooker, luther allison, lighning hopkins, Louisiana Red, U. P. Wilson, bobby mack, buddy guy...

Is there maybe a book of some kind with a nice blues collection or anything else you can recommend?

thanx