There is alot of different toons)teams you can use. It all depends on what phase you are in.
P1 zeta kylo Ren or CLS are perfect (but you said you didn't have cls yet)
P2 is great for CLS teams and Zader teams/droids/Jawas
P3 is great to have Zeta Savage/zqgj teams
P4 zeta Cody and clones (including leia) have someone in my guild who can almost solo p4 and does it regularly. Also have someone in guild who runs Resistance squad who can solo it.
If you need more help then feel free to message me.