>>47787344let's see..
>gen1maybe some Karen, a little Misty, not much
>gen2lyra? not so much porn
>gen3a little May, maybe some Glacia?
>gen4Dawn, Cynthia, lots of stuff
>gen5Hilda, Rosa, Elesa, Viola maybe even some Iris, lots and lots of stuff
>gen6I can only think of Serena right now, has decent amounts
>gen7Lusamine, Lillie, maybe some Mallow? enough about them
>gen8Marnie has a lot
Overall I would say probably gen5, with gens 4,7 and 8 being close.