Korsic and Dwarven Spirits and Crypt Undead

Zombie (draugr)  (CR 1)

Draugr (CR 2) homebrew.

Deathlock Wight (draugr sorcerer, ice, necrotic) (CR 3) +undead fortitude

Wight (draugr warrior) (CR 3) +undead fortitude

Revenant (draugr revenant) (CR 5)

Skeletal Knight (draugr knight) (CR 7)

Naergoth Bladelord (draugr bladelord) (CR 11) +undead fortitude)

Devkarin Lich (draugr deathlord) (CR 14)

Death Knight (draugr overlord) (CR 17)