Always been partial to Epic, Stoner, and Traditional Doom!
Acid Bath, Attention Deficit Domination, Bedemon, Candlemass, Church Of Misery, Count Raven, Goatsnake, In-Graved, Memento Mori, The Obsessed, Om, Pagan Altar (Good mix of traditional & 60's psychedelia), Pentagram, Place of Skulls, Reverend Bizarre, Saint Vitus, Shrinebuilder, Sleep, Solitude Arturnus, Spirit Caravan, and Uncle Acid & The Deadbeats for example.
Never cared for Doomdeath too much but Coffins, My Dying Bride, Novembers Doom, and Swallow The Sun are a few exceptions.