How to buy azero in usa?

I'm curious to know, could you elaborate on the process of purchasing AZERO in the United States? I'm particularly interested in the steps one would need to take to safely and securely acquire this cryptocurrency. Is there a specific exchange or platform that's recommended for US residents looking to invest in AZERO? Additionally, are there any legal considerations or restrictions that buyers in the US should be aware of before making a purchase? Your guidance would be greatly appreciated.