Best Mods for This Team?

I'm really trying to focus on mods lately to power up my team, but I would like some input as to what to go for. I currently have access to the health, crit chance, and tenacity challenges, and I'm up to offense on the normal mod battles. My team consists of Ackbar (L), SRP, EE, STH, and Lando.

Given this information, what mods do you recommend?