If we're sticking to modern there's R.L. Burnside (in the Fred McDowell tradition) and a few more women: Susan Tedeschi,Bonnie Raitt, Dana Gillespie. Jools Holland's guitarist, Mark ?Buchanan is pretty good as is Chris Barber's John Slaughter. Harp players include- Paul Jones. Pianists- Chuck Lavell.
RtS