NoxPlayer
I have tried quite a number of Android emulators... including BlueStacks and Andy.
This one seems to be the best one i have used so far. Its lightweight, very responsive and seems to be completely free.
Give it a go if you are looking for an Android Emulator.
Fast and Smooth
Our cutting-edge engine brings you a gameplay experience that will surpass your mobile phone's. With leading technology based off Android 4.4.2 & 5.1.1, compatible with X86/AMD, it's stable, fast and reliable.
Absolute Compatibility
Compatible with games and apps, including new and popular titles. Whether you're old-school or a newbie, you'll definitely find something fun to play on Nox.
It is very good, I use it to play clash royale