To run Android apps on a Mac, use emulators like Android Studio or Genymotion. Install Android Studio from Google’s website, set up a virtual device, and run apps via the Google Play Store.
BlueStacks is a popular and free emulator that allows you to run Android apps on a PC or Mac computer.
To use iMessage on an Android, you'll need to download the AirMessage app on both your Android and Mac, then link them.