Question: things to do after beating the elite four?
Answer: 30 Things To Do After Beating Pokémon Let's Go Pikachu and Eevee. ...  Challenge All 153 Master Trainers. ...  Play at the Go Park. ...  Collect All the Mega Stones. ...  Explore Cerulean Cave. ...  Catch Mewtwo. ...  Fly in the Sky with your Pokémon. ...  Re-Challenge the Gym Leaders.