Game controller

Hi may I know what is the game controller :video_game: usb type compatible for playing here on pc because all the while I have been using keyboard to play. I would love to buy game controller :video_game: to play more smooth. Any recommendation?
Can I buy the normal controller or compulsory need xbox 360 controller function?
And how to setting 2players on controllers ? Because I have input 2 keyboards but it’s not functioning on 2nd player.
Thank you… :slight_smile: