* Route 34: You can find Aipom in the tall grass of Route 34.
* Route 39: This route also has Aipom in the tall grass.
* Goldenrod City: Aipom can be found on the rooftops of Goldenrod City.
* Ilex Forest: Aipom can be found in the tall grass of Ilex Forest.
* National Park: Aipom can be found in the tall grass of National Park.
Keep in mind that Aipom's appearance in these locations is random, so you may need to search for a while to encounter one. You can also try using a Pokémon with the ability "Aroma Wake" to increase the chance of encountering Aipom.