Almost anything, as long as they arent Nicknamed (Original japanese names are okay too though) so that may help you shorten the list if some have nicknames.
I especially want a shiny Latias.
I dont need charizard, blastoise, or gengar for certain, so if you have those you may omit them as well.
I have too many shinies to list that I own, and Im basically looking for anything I dont have, or competitive versions of mine, so yeah.