Do I have anything in my roster that can beat SLKR

It's no guarantee, but JKR JKL Hoda are probably the best option (non GL options that is)

Looking at your roster, your off-meta (non-GL) Jedi aren’t strong enough to take on an optimized SLKR team.

The team comp you’re looking for is:

JKR, Bastilla, HY, JKL, Old Ben

It isn’t an easy counter. You need them modded in a specific way, need to meet certain speed thresholds, and need a specific strategy. Even if you do everything “right,” it’s still far from a guaranteed victory. You’ll likely need them all relic’d, with JKL at a minimum of r7.

I suggest doing a search on YouTube, writing all the specifics here is daunting. I highly recommend “Xaereth Prevails,” I believe he was a pioneer for this off-meta counter and breaks things down very well. Plus, you can watch him successfully do this counter over and over again to help make sure you get it right.

Added note:

I had this same problem as you once upon a time ago. I decided to gear up this off-Meta team before finishing my JML farm. I’m very glad I did, as you’ll want/need off-meta GL counters as you climb in GAC to remain competitive.

If you want to try an interim SLKR counter before you finish Luke, then you could farm the armorer. Jkr lead JKL armorer (other 2 don’t matter so much - you could use HODA plus AN Other Jedi). SLKR jumps JKR to trigger Armorers 3rd stack - whack the Beskar on JKL. Take ST out first & then JKL should work through the rest of the squad. I don’t have the fastest JKR so I find this a more reliable counter than the traditional Jedi one