Check out RetroBat. It uses EmulationStation as the frontend and comes pre-packaged with all kinds of emulators; kinda like RetroPie but for Windows. It uses RetroArch as well as standalone emulators. Source: over 2 years ago

If you're familiar with batocera stick with it. If you're more comfortable in windows use the windows unofficial batocera (that the real batocera team tweets support for). It's called retrobat. Find it here: http://retrobat.ovh/. Source: about 3 years ago

Edit: A third way, if I recall correctly, is to use the Skraper app from skraper.net. It uses a GUI to let you scrape metadata and assets from screenscraper.fr (and, hopefully, maybe import some of your own art and assets?) and I believe it also builds a gamelist.xml for you. I think I used this method the first time I set up an RG351M on 351ELEC, and the metadata format used there applies to many of the games... Source: 11 months ago

You can give Skraper a look at skraper.net. You'll need a free screenscraper.fr account, and there are daily limits to how much you can scrape without waiting or paying them a bit, but you should be able to poke around and see what's there. Source: about 1 year ago