For auto-battle, basically you need a defensive team, thus Light team is most recommended:

D'art w/ ambush, Michael, Sol, Belobog (replace by Uranus for easier situations), Artemis. Phoenix

Phoenix event is coming next month. And you still have to spend time and efforts building up the weapon grid (Good news is Light has the best disastre raid weapon).

During this period (and in the future as well), Dark/Fire team is also viable, to take advantage of your current eidos and element weakness:

Fire: Joan, Amaterasu, Amon Unleashed, Agni, Brynhildr. Ifrit (replace by Echidna when fire weapon skill gets higher)

Dark: Joan w/ sniper shot, Amon Unleashed, Sol, Balor, Beelzebub. Echidna (Manually activate Balor's first ability then go auto)

You may use other souls, but bottomline is ensuring both Type A & B def down, not difficult as you have Amat & Amon.