>>42944153>>42944192Most of these are fair. Not sure why Onix and Steelix are made pure type apart from muh common Rock/ground trope, can more easily see Golem being monotyped instead.
If you need more ghost types, Marowak as Ground/Ghost fits the bill too, its alolan variant has already shown that that typing is not out of the question. Porygon could be part Ghost typing too, although that boils down to your own interpretation of ghosts (beings with partially incorporeal bodies, or straight up spirits).
Other retypings I myself have fiddled with are below. Some are honest retypings, while others are changed to allow for more Pokémon of that type in the early gens.
>Dodrio is Flying/Ground>Hitmonchan is Fighting/Fairy>Hitmonlee is Fighting/Steel>Hitmontop is Fighting/Ground>Hypno is Psychic/Dark>Kangaskhan is Normal/Dragon>Lapras is Ice/Dragon>Primeape is Fighting/Dark>Rapidash is Fire/Fairy>Sunflora is Grass/Fire>Tauros is Normal/Steel 