I am looking for some good screamo / metalcore bands. Any ideas?

I have tried Killswitch engage, KoRn, August Burns Red, Bring Me The Horizon, Black Veil Brides, SlipKnot, Asking Alexandria, Bullet For My Valentine, and a few more. I know that not all of these bands are screamo or metal core. but i want to find some more metal core and screamo bands. Please post the name of a band and a link to your favorite song by that band. Thanks :)