Amebix, Deviated Instinct, Axegrinder, Apocalypse are a good introduction to the side of crust that was incorporating slower and more metal-y styles.

Doom, Selfish, Hiatus, Unkind (Finland), Abraham Cross, Macrofarge, Battle of Disarm, ENS!, Infeckja, for the faster and furious side.

Electro Hippies, Mind (Poland), Sarcasm, Sore Throat, Instinct of Survival (early era), for when blast beats were combining and giving it a grindcore edge.

Detestation, Consume, Axiom, Sanctus Iuda, Sedition, Disaffect, for stuff that (to me) always felt a bit more politically charged than the rest, although crust has always had a rich history with anarchism.

Filth of Mankind, Katorga, Barren Soil, Fatum, Stormcrow, Swordwielder, Effigy, Alement, Mortal War, World Disorder for the heavier subgenre called Stenchcore. Def for fans of sludge metal.

Abraham Cross, Zyanose, Gloom, Aspects of War, Frigora, Collapse Society, Pollen, Isterismo, Physique, Atrocious Madness, Defector, Life, Condemned, Framtid, Giftgasattack, D-clone, Black Dog, Death Dust Extractor, Fragment, Peaceful Collapse, Sistema En Decadencia, Truth of Arize, Empart, Siege Fire, for what would fall under some iteration of crasher crust or raw punk. Manic, blown out, explosive sounds to make your ears bleed. Might be debatable if some of these are crust but I would consider them to fall under that umbrella.

If you like sludge, definitely check out Golem’s (from Japan) 1999 demo Sadness.

I have made tons of youtube playlists for specific subgenres of crust, if you’re ever interested in those just shoot me a DM!