I've looked for the official website of the Pokémon Scale World series and compiled all the heights of the characters that have figures so far. Keep in mind these don't seem to take into account hats, hairstyles or poses, really, considering Red, Green and Blue have the same height, Victor/Gloria's height doesn't change even if you check their hatless figure versions (the ones with gym challenge uniform), etc.
Now feel free to use the videogame versions of the characters' real heights to fantasize/shitpost.