Both Meowdtics are great for various roles, too. Male can reliably set up duel screens for the entire game and Female can sweep effectively untill you have other options like Gardevoir
There's a spot in the hidden garden, one closer to the fishing rod guy, one by the Surskit fountain, one across the street from the Pachurisu/Panpour house, one by Pansear, and one behind the Whismur house. That's all I know off the top of my head.