While we're on the subject of classic southern rock, here's my favorites list for that category.
Let's start with Lynyrd Skynyrd. They had a bunch of hits. Free Bird is one of the great songs of the classic rock era. It was played at the end of every junior high dance. I also like Call Me the Breeze, Gimme Three Steps, Saturday Night Special, You Got That Right, and this one
Lynyrd Skynyrd - I Know a Little
The Allman Brothers were a fusion of blues and southern rock, and one of the early jam bands. They had a ton of great songs, but I'm picking this one, so take a long drive and listen
Allman Brothers – In Memory of Elizabeth Reed (live)
Another song for your drive, by the Outlaws - a classic rock staple
The Outlaws – Green Grass and High Tides (live)
While these guys are from California, they made songs about the south. One of the best bands out there
Creedence Clearwater Revival – Born On The Bayou (live Woodstock)