>>44522434NGL Kanto doesn’t have enough ghost and dragon types even though there are Pokémon that could fit as these types in the region.
Ninetails=Fire/Ghost while Kitsune aren’t truly ghosts, the word kitsune means “Fox Spirit” and considering the fact that Draco Meteor is dragon type move because of a pun in Japanese, I don’t think it’s that ridiculous for Ninetails to be a Fire/Ghost type.
Marowak: Ground/Ghost
Voltorb and Electrode: Electric/Ghost, they’re based on a type of Ghost that possesses ordinary objects and brings them to life, so this typing makes perfect sense.
As for Dragon type
Gyarados: Water/Dragon. Not only is it based on a dragon legend, but it is also a powerful Pokémon that takes effort to evolve. Magikarp already represents this theme as it’s a really weak fish that can evolve into a powerful dragon if you put the effort into training it. If Gyarados was part Dragon type it could emphasize this even more