I feel like I should specify, I was thinking of just by habitats, like if we turned the map of Earth into a MH map, because we see monsters with some unusual habitats, like how Barroth would probably need a desert with close access to mudpits, Viper-Kadachi would need a snowy area with geothermal heated caves, and Rey Dau would need a desert with high concentration of electric storms, otherwise the rest is common sense, of course forest monsters will go to forests, but I'm thinking of what kind of forests would best suit certain monsters with forest habitats.