Next up is Genymotion, an emulator for developers instead of gamers. The biggest benefit of this program is the ability to test your apps and games on a variety of "devices". Basically, without owning a Pixel 3 or something, you can still test apps for those devices.
You'll have the option to quickly change between different devices or Android versions, test your app or game, then switch to something else with ease. They also offer a powerful virtualization platform for any professionals needs. They even have an OnDemand and Cloud version, and it works for PC and Mac.
Geny is completely free and worth consideration.