I can't agree with a lot of those males, tbh. They sound very much like "take the female's interest and put it in a male", which won't make them very viable as their own characters. They would lack depth. If all the girls can be friends even though they're so different, can't some of them have love interests that contrast them? That would not only bring out the traits of the female (like a foil), it would allow for a lot of character growth. For example, I could see Fluttershy being with a pony that's outgoing, not like Rainbow Dash, but very friendly. He would share her love of animals and would be gentle, but would be outgoing enough to push Fluttershy to try to imitate him and to test her limits.