How would you improve the Kanto regional dex? I'm working on a Leafgreen hack and I've been expanding the dex, adding

>Babies
>crossgen evos
>Houndour, Murkrow, Slugma, Sneasel, Larvitar, Skarmory, Gligar, Heracross, Miltank, Mantine, Remoraid
>some regional dex staples like Wingull, Absol and Riolu
>some Pokémon that could make thematic sense like Makuhita and Corpish

What Pokémon could you see in Kanto? Unova and Kalos mons are probably too exotic to appear in Kanto. Alola shares a lot of its dex with Kanto so maybe some Alolan mons could crossover (like Yungoos, since it's an invasive species to begin with).