Nox is another Android emulator for PC for gamers. That includes the usual stuff like key-mapping with your keyboard, actual controller support, and even the ability to key-map gesture controls. For instance, you can assign the function to swipe right to an arrow key and use that in a game without actual hardware controller support. It’s a lot of fun and seems to work rather well most of the time. It’s also entirely free and in active development, a boon in this space.