This is sort of my "B" list/honorable mentions.
The Mist - Phantasmagoria (1989), The Hangman Tree (1991) Incredibly underrated band.
Slayer - Haunting the Chapel (1984)
Nephastus - Tortuous Ways (1991)
Post Mortem - Coroner's Office (1986)
Assorted Heap - The Experience of Horror (1991) German thrash that sounds a bit like Ripping Corpse at times.
Meliah Rage - Solitary Solitude (1990)
Psychic Possessor - Toxin Diffusion (1988)
Insanity - Death After Death (1993)
Defleshed - Abrah Kadavrah (1996)
Ritual Carnage - The Highest Law (1998), Every Nerve Alive (2000)
Ruins - Chambers of Perversion (2010)
Sodom - Tapping the Vein (1992)
Terror - Decades of Terror (2015) Great compilation album of demo material.
Devastation - Dispensable Bloodshed (2017) Another great demo comp.
Besieged - Victims Beyond All Help (2010)
Voivod - Killing Technology (1987)
Destruction - Cracked Brain (1990)
Possessed - Seven Churches (1985), Beyond the Gates (1986)