My avatar is Lightning Bolt's Hypermagic Mountain album cover. I agree, they are incredible, and Brian Chippendale(drummer) is one of my heros. But they aren't metal at all, noise rock.

Listen to Discordance Axis, Suffocation, Aborted, or Carcass. Even though these bands are old, there are still bands ripping shit up today. Nile and Necrophagist are some examples. And if you don't like that type of shit there is even more styles. For example you could dig Noothgrush or Corrupted, or maybe even Candelmass. There are so many styles and subgenres of this genre I don't know how you couldn't find at least one thing you're into.