I think Liu or Loma Noju would be better than Alexei since you already have 2 SOA and one courage SOA. Personally I think Liu would be the better fit since you don't have any SOB and it also opens up the 2HKO option without having to use Fury. Right now unless you draw Striker & Rubie you can't 2HKO without using Fury.
With Liu you could 2HKO with her and Rubie, Striker, or Marina.
Green face 