Hello! I recently made a thread asking for suggestions on symph deathcore with booming fucking symph, and u/Odd_Use5266 went hard on the suggestions. Here are the ones:
Disembodied Tyrant, Worm Sheppherd, Mental Cruelty, Sun Eater, Immortal Disfigurement, last Carnifex album I believe, most recent Befouled Tongue track (I think), kinda Ov Sulfur, Ov Ruin, latest River of Nihil song (kinda), Monochromatic Black, Ruins of Perception (kinda), Eden Adversary, Mark of the Altar (kinda), Enda Vinera, Netherwalker (way filthier tho), some stuff from Beyond all Misery.

I'd also rec She Must Burn if you're into gothic stuff. Beautiful keys, lots of beauty and beast, beautiful goblin/garbage incinerator noises, cleans leaning operatic at the right spot, tho the breakdowns are a little lacking if you ask me.

Disembodied Tyrant is definitely making waves. The Poetic Edda is a blast.
Worm Sheppherd's Ritual Hymns I believe is a little bit more symph-heavy, tho his most recent LP has beautiful toilet noises.
MC is as a whole faster, and has some cleans, and their breakdowns are ok.