I replayed Monster Hunter Stories (you know the game that actually lets you ride your monsters, all 104 of them) and I figured out what Gamefreak could do to easily let us ride our mons, or at least a good chunk of them. Give them a saddle. BOOM! Then you don't have to worry about making sure the human model doesn't clip though the pokemon. Sure this would most likely only work for fully evolved pokemon but riding on a pokemon would be way cooler than riding on a god damn bike. Fuck even Let's Go got that right.