Any Viable Empire Teams?

It depends on your Shard's age, really. I'm on a very old shard, so there is no team I could possibly put together to counter these Meta-Rebels. There are a few people on my shard using teams like those listed above (with fantastic mods as well), and they're all sitting in the 30-50 range.

If, however, you're on a younger shard, you've got a chance. Just expect an uphill battle.

zKrennik lead with zDeath Trooper, zShore trooper, TFP, and Tarkin

No Z on Shore, looks like with all that AOE it'd get ran over by CLS.

Thrawn (L), shore, death, krennic, TFP

I don't see how either of those teams are going to beat a meta rebels team.

Also Krenic is in less than 1% of teams with him being a leader in 0% https://swgoh.gg/meta-report/

That may be, but some of us don't like meta (hence dark side to begin with)

Not to discourage, but us, Empire players have a really hard time without exceptionally good mods since Disney/EA/CG has a massive Rebel bias.
That being said I have seen successful Empire teams, like Thrawn-Shore-Storm-Death-Krennic/Tarkin.

I could manage #1 arena everyday were it not locked by same payout time with:
zThrawn, DK, zDT, ShT, DN.
Dec 15 shard

zThrawn, DT, TFP, zNihilus, Shore
Can still break into top10, always top20, overnight drop to 30s

CLS lead+zzR2 a pain in the bum. Might try a zVader lead and use Thrawn to make him go first to get some sticky debuffs to help TFP and Nihilus