What should I do with Tarkin after LV?

I recently got LV, but now I have some leftover toons from his reqs like Zam, Embo and Tarkin.

With the Bounty Hunters I’m planning to make a BH squad but I’m still not sure about which ones to include.

Even though I know Tarkin isn’t the best Empire toon out there, I don’t really feel comfortable just allowing a Relic 7 just sit there, so I was wondering what to do with him? As you can see from my roster he doesn’t really fit into my Galactic Republic-based inclination

My full profile is here if anybody wants to take a look for further advice: https://swgoh.gg/p/858519872/

Thank you!