Can somone give me a list of bands like Massacre, kataklysm, slayer or suffocation?

I just dont want any mainstream artists. For example NOOOOOO; iwrestledabearonce, BMTH, as i lay dying, the Black Vadalia murder, August Burns Red, This Or The Apocalypse, the Faceless, The devil wears Prada---no, pop metal bands. I also like Sodom, Sargeist, Skeletonwitch, Nile, Meshuggah, Gojira, Acid Bath, Opeth and Extol just to name a few.