Tin Man
Smash Hero
the best secondary for Olimar is a character that can take out Luigi and peach, and MK. Falco is pretty good, don't use Wario I suppose cause that wont solve Peach and Luigi, The secondary also has to be able to take out Marth to a certain extent. On the other hand secondary whoever fits your playstyle, if Wario worksfor you, then use him.