Commander Luke Squad Zeta suggestions?

That real synergy is Han double tapping a Rex or wedge, CLS finishing them off. It neutralizes a need to go after DN right away. This can also work under a Boba lead but it is more fun under Luke. R2 needs both no question. Luke needs unique (binds) first then lead then passive but that is a very low priority zeta. I think Leia has arena use (in raid Han's place) in this team, but Old Ben and Stormtrooper Han are still going to be smacked around even with their Zetas. As Olddumper suggested Thrawn is better here. Right now I'm experimenting with the other two slots that aren't CLS, Han, R2; Shore is my best tank option but due to going up against fractures it is helpful to have two tanks or a tanky character. I've been fiddling with SRP there, Thrawn, death, storm. Haven't hit the Sweet spot yet. Gearing Chaze now as they will do well in this team.