You're gonna be a Gym Leader! But you have to replace someone to do it...

I'd be in Kanto as a Fairy Elite Four member. Agatha is ancient folks and she is a Ghost specialist in a region with one Ghost type. Even if you take regional variants into account, Kanto only has two Ghost types(Gengar + Alolan Marowak).

Yet for me, my roster of Kanto Pokémon(regional variants included) has a total of six: Clefable, Wigglytuff, Mr.Mime, Alolan Ninetales, Galarian Rapidash and Galarian Weezing. Could even include Sylveon given Eevee exists.

I also thought about rolling as Ice but Lorelei isn't that bad. Not sure where I'd be an Ice Gym Leader. Pryce is old in Johto but not as bad as Opal or other ancient Trainers. Even Kabu is kind of old.