High on Fire, Sleep, Acid King, Orange Goblin... I love
that god-of-the-riff, bottom heavy, often slow, turgid southern music found in doom/sludge metal. In general despite being from the Seattle area I think all my favorite music hails from the south.
Wizard is an english band but very much a part of the sound.
Anyway, sorry to take the thread elsewhere. But my initial recommendation stands.