Centaur ComicsSuper Ann Star (appeared in the last couple of Mighty Man stories)
The Blue Lady (appeared in, I think, 3 stories, but she had potential)
The Magician From Mars (a bit overpowered, but could be used well)
Dell ComicsOwl Girl (meets the eye candy requirements
)
Is
Bell Features PD? I'm not sure about Canada's rules.
If yes then The Wing and possibly the Polka-Dot Pirate.