Grindcore:
Discordance Axis
Napalm Death
Nasum
Vulgar Pigeons
Crowpath
Pig Destroyer
Regurgitate
Death Metal:
Cephalic Carnage
Capharnaum
Arsis
Suffocation
Noise/doom/ambient/sludge/or inbetween these:
Old Man Gloom
Neurosis(masterpiece,IMO)
Breach
5ive
Stoner Rock:
Orange Goblin
The Now
Boris(but they mix diff stuffs tho)