Direct from Wiki, because they actually did a pretty good job:
Traditional doom
Orodruin, Reverend Bizarre, and Witchcraft.
Epic doom
Candlemass, Solitude Aeturnus, Solstice and Doomsword.
Stoner doom
Kyuss, Sleep, Cathedral, Acid King, Electric Wizard, Orange Goblin and Sons of Otis.
Sludge doom
Eyehategod, Crowbar, Buzzov*en, Acid Bath and Grief.
Funeral doom
Mournful Congregation, Esoteric, Evoken, Funeral, Thergothon, Skepticism and Corrupted.
Drone doom
Earth, Boris and Sunn O))).
Death-doom
Winter, Disembowelment, Paradise Lost, Autopsy, Anathema and My Dying Bride.
Black-doom
Barathrum, Forgotten Tomb, Woods of Ypres and early Katatonia.
Have fun checking these bands out! If you find yourself drawn to a particular subgenre, go ahead and ask about it for further recommendations. I've underlined bands I recommend.
