I went in blind to TZA for the most part. I've played FF12 before just not this job system. I went with::
Vaan - Shikari / Bushi
Balthier - Machinist / Time Battlemage
Fran - Arher / Red Battlemage
Basche - Uhlan / Knight
Ashe - Black Mage / Foebreaker
Penelo - White Mage / Monk
Main party is Vaan/Balthier/Penelo but the other three can certainly hold their own. I'm doing all the end game stuff and having no problems. The only *slight* issue I have is using technicks as Ashe has all the good wither ones.
I'll suss out more optimised builds next playthrough. White Mage / Machinist combo for example.