ie no shitty Cali bdm. Doesn't matter what genre (but don't say Dragonforce because I think they suck). The obvious answers would be Berzerker, Anaal Nathrakh, early Immortal, Mjolnir, Nile, Cryptopsy, Angel Corpse, In Battle, etc. but I've heard those bands. If you're gonna recommend brutal death, it's gotta be good, as I can't get into shit like Severed Savior, Decrepit Birth, Odious Mortem, etc. You can recommend norsecore, if appropriate, but only good norsecore.