Best Negotiator Lineup?

NotTheChosenOne

What's the best fleet lineup for the Negotiator?

I'm thinking HT, ETA & umbaran as the main.

Then, Ashoka, Rex & ______

GreenGoblin96

Not rex, but clone sarge and plo koon

Vinniarth

There are not so many options
Eta-2, 5555, HT at the start,
Plo Koon, Snips, serg as reinforcements. I sometimes uses Cassian U-wing instead of Serge