Musketeer > Corsair/Gambler?

MRD > Dark Knight(DD)

PGL > Dancer(Healer)

CNJ/THM > Geomancer(DD)

??? > Ninja(DD)/Samurai(Tank)

Dunno what would work better for Geomancer, but possibly CNJ since it'd have something besides a Healer sub. Basically give each of them a choice between one of the two, like SMN/SCH are from ACN.