I would not want this to actually happen. But if this is just a fun theorycrafting exercise...

Paladin: King Thordan.
Machinist: Alexander I guess? Because mechanical?
Bard: Susano. he likes to party and bard play music and tell stories.
Warrior: Ravana. LIkes to fight, honroable warrior type.
Black Mage: Ramuh because destructive lightning.
Dragoon: Shinryu I guess because of the link to the dragon eyes.

Would have to think on the rest.