Just about every one ever written and there are 100's of artists to check out. Go back to the start and check out Robert Johnson then you could try Elmore James, Albert King, BB King, Albert Collins moving through to the legend that is Stevie Ray Vaughan and Johnny Winter and some Texas Blues, Alvin Lee, Gary Moore, Eric Clapton, his album "From the Cradle" has some absolute classics on it. There are so many that it's difficult for me to pin down just a few, have a listen and play what YOU like.
Blues is fairly easy to play the basics, typically 3 chords and you can play loads of lead using the minor pentatonic scale.
Jerry