I think that the shop system is pretty annoying considering you need to wait patiently for a skin you desire. I doubt that Riot will add a feature that allows you to buy anything you want using a search bar or such, but I think it would be...

Jett would probably be an Airbender but her hair kinda reminded me of Azula It's not the best edit but i tried https://preview.redd.it/f7bwg4lvlg061.png?width=1090&format=png&auto=webp&s=97070ca8b776284fa77da59403efe62056828f40