How do I buy LUNC in the US?

Hello, I'm interested in purchasing LUNC, the native token of the Terra Classic blockchain. However, I'm not quite sure how to do so in the United States. Could you please guide me through the process? I've heard about cryptocurrency exchanges, but I'm not sure which ones allow for the purchase of LUNC. Additionally, I'm concerned about the security of my funds and would like to know if there are any specific steps I should take to ensure a safe transaction. Could you recommend any reliable platforms or wallets that support LUNC and provide a secure environment for trading? Thank you for your assistance.