How do I use a controller on my Fire tablet?

Hello there, I'm curious about how I can use a controller with my Fire tablet. I've seen some people gaming on their Fire tablets with controllers and I'm wondering if I can do the same. Do I need a specific type of controller or can I use any standard one? Also, how do I connect the controller to my Fire tablet and get it working for gaming? Any help or advice would be greatly appreciated. Thank you!