So here's what I have so far

Lon'qu: Infantry Sword

Lachesis: Armored Lance

(Young) Tiki: Green Infantry Mage

Rein: Infantry Archer

Seliph: I have no clue yet.

Lukas: Axe Cavalry

Boey: idk

Lucius: Blue Infantry Mage

Anthony: Sword Infantry

Berkut: Infantry Healer

Genny: Green Infantry Mage

Leon: I have no fucking clue.