Been playing Pokopia since launch and got tired of alt-tabbing to check habitat requirements, so I built a searchable database for it.
You can look up any Pokémon and see what items/biome/environment level you need to get them to spawn. Has all 200+ habitats from early areas through Rocky Ridges.
Also works in Japanese, Korean, and Chinese if that's useful for anyone.
Free to use, no ads. Happy to add missing data if anyone notices anything off.