What Pokémon have you had success with?

I’m not new to ranked play, but I was wondering what specific builds people are having success with? I’ve been using my Pokemon I had trained for Violet, but I’m not sure they work well as a cohesive team as of yet.

And while I’m not new to ranked, I am new to battling with megas, so if people want to share which megas they are doing well with I’d love to hear it. I’m currently experimenting with mega Scizor and mega Garchomp.