Ideal Sith Empire team?

I'd say generally, the ideal Sith Empire lineup without Malak is going to be DR, BSF, HK, and SiM and SET. For the purposes of a TB since you would hurt your roster more overall by mixing and matching, and some options (like GMY) wouldn't even be useable, nor would they be needed (no CBM to protect from), your only other options would be Thrawn or some other Sith you don't need elsewhere. SAss, as mentioned, doesn't work particularly well with a Sith Empire lineup, so your options are pretty limited.