For physical minis -
Mantic Abyssal Dwarfs - cheap, easily kitbashed plastics and some characterful sculpts
MOM Dark Dwarfs - some great heavy infantry, and some unique pieces like the chariot
Scibor - brutal, very large and with more of a Chaos Undivided feel
For STLs -
Lost Kingdom Magmhorin - the space programme of STLs
@Fabelzel - master of the vintage heroic Big Hat look
@Brawniac - bang on 90s aesthetics, new stuff to check out on his thread but not sure he is distributing STLs yet!