How to buy ordi in the USA?

I'm curious about the process of purchasing Ordi cryptocurrency in the United States. Could you please provide a step-by-step guide on how to go about it? Are there any specific exchanges or platforms that are recommended for this purpose? Additionally, what are the potential risks and considerations I should keep in mind before making a purchase? I'm new to the world of cryptocurrency and would appreciate any advice you can offer to help me navigate this process smoothly.