How to buy SATs ordinals in the USA?

Could you elaborate on the process of purchasing SATs ordinals in the United States? As a cryptocurrency enthusiast and financial professional, I'm curious about the specific steps involved. Is there a dedicated exchange or platform where one can acquire these ordinals? Are there any regulatory considerations or restrictions I should be aware of? Additionally, how secure is the transaction process, and what are the recommended safety measures to ensure a smooth and secure purchase? Your insights would be greatly appreciated in guiding me through this process.