Oh this is a really good thread
I think I'd travel and be a coordinator! I want to believe there's contest halls in every region like the anime implies, so I'd travel around and participate in contests, idk if I'd make it to the Grand Festival but I can sure as hell try. Each member of my team would specialize in specific contest styles.
Mimikyu and Chandelure would rock the Cute category while also sneaking in some spookiness for shock factor
Magneton would perform for the Clever category, though I'd try to sneak them into the cute category too. Magneton are too cute to be left in just one category!
Lilligant would be in the Beautiful category, with her many dance moves I'm certain she'd rock the stage
Poliwrath would then be in the Tough category! Big buff cute frog is hard to beat mmhm
And last but not est Greninja would specialize in the Cool category, there's nothing Greninja wouldnt be able to do to show o its amazing speed and water shurikens!
I think after all is said and done I'd continue travelling around, perform here and there and battle to get cash to get by, stay in cozy inns and camp in comfy forests, I'd like to bring my laptop or sketchbook to make art based on the places I've traveled and then return home to Hau'oli city to settle down when I'm older, maybe try to open a little inn of my own nearby.
https://www.youtube.com/watch?v=DcwMj0uZv70 