I got tired of type chart websites being slow or filled with ads, so I built my own. It is called Poketypes. You can search for any Pokemon including Gen 9 and it gives you all
weaknesses and resistances instantly. It is a Progressive Web App, so you can add it to your phone home screen and use it offline. I hope you find it useful for your games.
Link: https://poketypes.app
by AlarmLegitimate8254