Start the Right Android Emulator
I was just struggling to find out how to start a different emulated Android device from the command line. I found the relevant commands:
$ # List all available emulated devices:
$ emulator -list-avds
Android_8
Pixel_2_API_29
Pixel_2_API_30
$ # Start one of them, pass the according name like so:
$ emulator -avd Pixel_2_API_29