Attempting to widen my Metal library. Any suggestions?

I'm looking for new songs and bands to add to my iTunes and, rather
than wading through all of the shitty metal on YouTube, I'd like to
hear some input from the Answers Community. Please no bands that sing
about bleeding wrists, broken hearts, shit like that. I'm looking for
bands that sound like, or are as good as, these listed here:

Lamb Of God
All Shall Perish
Through The Eyes Of The Dead
Slayer
Job For a Cowboy
As Blood Runs Black
A Day To Remember
The Black Dahlia Murder
Arsis
Children Of Bodem
August Burns Red
DevilDriver
Pantera
Suicide Silence
Unearth
etc........