There are plenty of good "living" artists, I gave a few examples (Buddy Guy, Otis Rush, Lonnie Mack, Chris Duarte, Tinsley Ellis). On the acoustic blues side, you can add Robert Jr. Lockwood ("son" of Robert Johnson), Keb Mo', Taj Mahal, John Hammond Jr., Paul Rishell and Annie Raines, and someone I really like who is of the newer generation is Alvin Youngblood Hart.
Lots of stuff...I was just working top-of-mind, and when going from SRV as an introduction, you tend to work backwards from there...