Pokémon Legends: Z-A is an upcoming release (16 Oct 2025) for the Switch, with an upgraded version available for the Switch 2.
Nothing yet. If you want to add one, feel free to create it. It doesn't have to match my formatting style to be usable. Just make sure you add a link on this page.
If you want to add a resource, you can put it here and submit a pull request, or post on the Smogon thread that I'll be checking.