Arenvald or Bajsaljen from Bozja as Tanks.
Fordola or Ryne as DPS (unrealistic).
Urianger or Mikoto as heaer l(no krile please).
Hell i take one Bangaa from the Ivalice questlines over the others scions, they seem more of the adventurer type.

I wouldn't worry about chemistry, look how Einstinien, Ysale and Alphinaud started way back in HW and how they ended.