Baby boy name help please.?

My husband and I are on our 2nd boy and we need opinions please....We have a Brenden Michael and we are thinking about naming baby no.2 NIko (Nee-Ko) Logan ??? not too sold on Logan yet or Mirko (Meer-ko) Logan?? We want something strong sounding and athletic but nothing like brody or alex I guess nothing too Common . Any opinions please give nicely. thanks!