I am using romm, game vault, and testing out retrom: https://github.com/jmberesford/retrom/releases
Retrom is still pretty new but they plan on using emulatorjs for web play like romm, and having a client app like game vault.
I'm waiting for one of them to become the all in one solution for emulation, web play, and game installs for Windows games, but none of them are there yet.
Right now I would probably recommend gamevault for your use case.
We are talking about the OP. Don't try and make this thread about yourself.