CLS B Team

I'd bet Chaze, Leia and Fulcrum Tano could pull out some sneaky wins. Leia and Chirrut both spread buffs that Fulcrum can use to dish out monster hits, and Leia is no slouch herself when she's properly geared and modded.

Biggs and wedge , Baze and chirriut. Lots of damage and you can use wedge or luke lead , depending on use. Wedge lead makes a really hard hitting first few moves, which can be helpful if there’s 1 character you’re particularly worried about. I want to like k2so but he just doesn’t hold up. Jyn also can revive people so that’s something to consider. I usually use wiggs + jyn and Chaze as their own team.

I usually only use CLS as lead if I'm running him in the Han/Chewie/R2/C3PO team, and that's mainly because none of the others have leadership abilities. I find he's good with Wiggs but I prefer to use Wedge as the leader in that case, but I'm probably using them offensively in that case. On defense, CLS' lead is more of a pain because of the counters.

My rebels b team (not phoenix or rogue 1) is wedge lead Biggs Leia R2 and ob. I don't have 3po so leaves CLS squad sparse.
Chaze is very handy, but depends if you're running rogue 1.
Fulcrum and chopper make a good combo if you've the other phoenix.
Visas Marr can find a home too, if you look beyond rebel synergy. Perhaps AA lead CLS, visas, fulcrum, chopper

I ran them all behind ROLO today in TW

CLS, Chaze, +

Old Ben & SRP, on defense
PL & ATF, on offense

Save Wiggs as its own great cleanup/Phoenix team

Is this for defense or offense?
I assume all the characters mentioned are at g12?

You could be annoying like.
CLS
Old Ben
Jyn
Hoth Han
Baze/ chirrut. For dispel or cleanse