I would recommend Jason Barber who runs Kings Creek Adventures. I have been out with him quite a few times and have learned a lot about Hybrids from him. He also catches a lot of nice fish! Big Crappie would be another but I believe they specialize mostly on crappies but have seen them on the Hybrids as well in the past.
I would give Chris Richardson with www.lakelivingstonadventures.com a call. He lives in Athens and will definitely put you on hybrids! They specialize in striper, hybrids, and white bass! They fish live bait and artificials. I've learned so much from them!
Chris Richardson for sure. He will definitely put you on fish. He has a huge boat that can fish your party comfortably. Just a great, fun guy to fish with that always makes it look easy.