Infant Annihilator and Ingested are fucking great bands.
I like the description of the genre Infant Annihilator has
""Take every form of extreme metal, whether it be death metal, deathcore, grindcore, black metal, or slam and mash it all together until you have some kind of fucked-up stillborn deformity of filth"
Just listen to them [link]
and INGESTED : heart: [link]