Not totally sure about the following typings, I might modify some of them later.
According to lore:
Izzet: ENTP 7
Selesnya: ENFJ 2w3 1w2 6w5 So
Boros: ESTJ (not very satisfied by this typing because lacks the justice aspect)
Golgari: 8w9 (kinda hard to type undeads and spiders, feels Ne + Fe + Si to me)