That song is a banger, holy cow.
Lorna Shore seems like the big one in blackened deathcore right now, a lot of their singles sound the same, but they have some pretty creative songs and multi-song concepts.
I did a dive with Oceano last year, they've been around since before I got into metal and they're still making stuff.
I like some Thy Art is Murder, I'd put them pretty overlapped with metalcore.
I listened to some Whitechapel and enjoyed it, they're another that's been around forever.
My problem with a lot of the genre is the gore. I love the music, but grossout gore or explicit demonic stuff is a big turnoff.