I know this probably won’t help in your case, but if you both happen to have Nintendo Switches and have a Nintendo online subscription you get access to a bunch

I know this probably won’t help in your case, but if you both happen to have Nintendo Switches and have a Nintendo online subscription you get access to a bunch of NES and SNES games and can play them online together. They even have a mode for people to watch and “clap” while one person plays a single player game. It’s expensive to buy all that from scratch and closed to only the games that Nintendo has put on the service (Zelda is there I believe), however it “just works.”