Spoilers:

Giovanni is gonna make an entry soon. The most awesome villain of all in the Pokemon regions.

The list I composed of girls are:

Kanto

Eldest Sensational sister, Sabrina, Daisy ( Oak granddaughter), Solidad ( Brock childhood friend)

Johto

Jasmine, Clair, Whitney,

Hoenn

Flannery, flying gym leader, Roxanne,

Sinnoh

Cynthia ( favourite of most people),

Unova

Aurea( professor), Elsa, Skyla,

Kalos

Dianthe ( kalos champion), bug gym leader

And many more

I probably missed some so these days think of possible pairing with any one of these or other Pokemon characters.

See you later on Monday