This is in the wrong forum. If you wish for recommendations that are story-related, I would suggest posting a thread on this topic in either the Other Writing forums or the Pokemon Fanfiction forums, depending on whether or not your story involves Pokemon. Also, forgive me, but I'm not sure if this is allowed in the first place. If you're planning a story, you probably already should have plans on who the characters are, ne? Otherwise, what story do you have?