How do I register for Firetv?

Hello there, I'm interested in joining the Fire TV community and accessing its vast library of content. However, I'm a bit unsure about the registration process. Could you please guide me through the steps to register for Fire TV? I'd appreciate it if you could explain the process in simple terms, including any necessary prerequisites or information I need to provide. Additionally, is there a specific app or website where I should start the registration process? Thank you for your assistance!