Theory Crafting a CLS Squad

With what you have as options, I'd go with Leia and Ezra. Swap out Ezra with Thrawn when you unlock him. Swap out Leia for Raid Han when you unlock him.

I would build up Captain Han Solo to go with Leia. Ahsoka Tano Fulcrum would be better than Leia but she’s not as much of an “old school rebel.” The problem you are likely to run into is not being able to do enough damage to deal with Thrawn/Nihilus teams until you can get a Raid Han.

Dont underestimate stormtrooper han.

Wedge (L), Biggs, CLS, R2, OB with what u have atm.

For a looooooong time i did run a zzCLs L, zHan, Leia, zzR2, zOB squad on arena and it did hold me in top 50, the synergy between all the characters in this squad is great and i was able to burst dmg even through Palp meta teams. Now i am using zz CLS L, zOB, GK, zThrawn, zHan and i finish top5 every day. Can go through most of the Sith meta teams.

I would use Leia and Ezra like said above, until you get Thrawn (he is a real game changer), then put him instead of Leia, i think Ezras dispell and assist calling is worth more. Leia is a great dmg dealer, but Ezra calling a zHan to assist will do same dmg if not more and more reliably.