Pokémon training resources

I’m new to competitive Pokémon and getting started with Champions, even though I’ve played Pokémon casually since Emerald released.

Is there any website, or other resource, where I can check what’s the optimal or standard “build” for every Pokémon in the Champions format already?

I wanted to train my Pokémon on their original games before transferring to Pokemon Home so I won’t waste too much VP later on training them in Champions.

Thank you