Ozymandias? I don't think he's ever been officially been said to be Gay or Bisexual.

Black Cat? Similar here, I think.

I guess if you want to include Ozymandias you could always include Triumph (supposedly going to be gay). Element Lad (gay for Brainy) and Shrinking Violet (lesbian I think). Ironic these three were supposed to be "gay/lesbian" but never actually stated as such.