Which Zeta next?

SchmIddI

I play since Bossk release. So i was building a BH-Squad first. Now i am in the Situation that i have Thrawn, Palpatine,R2D2,and Chewbacca (5 Star) ready, but no CLS or JTR. I focused the Squad and Ship Arena and i get in the Top 50 in both every day. I gave a Zeta to Jango Lead and Boba passiv.
The next possible Zetas are

Bossk Lead (Chewbacca/Raid/Ship)
Bossk Passiv (Arena/Ship)
Thrawn Passiv (Raid/Ship)
Jango Passiv (Arena)
Han Solo Passiv (Raid/Arena)
Nest Passiv (Arena)
Chewbacca first Passiv (Arena/Raid)

or i could save the Zeta for CLS (I think that i get him next time)
or for Revan (also farming the characters and getting him next time)
or something i should Zeta from your point of view

this is my swgoh.gg profile: https://swgoh.gg/u/schmiddi/

I hope you can help me to find the best option xD.

Tbirds01

I’m not good with bounty hunters, but I’d say Nest. She is amazing with her zeta. Helps you ignore taunts on top of Boba and Jango In order to finish off almost dead characters. I use her and I love her zeta a lot. Thrawn's is good as well, especially if you’ll be using him a lot.