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)