Where can I buy sUSD?

I'm interested in purchasing sUSD, but I'm not sure where to start. Could you please guide me on the best platforms or exchanges where I can safely and securely buy sUSD? Are there any specific requirements or steps I need to follow to make the purchase? Additionally, are there any fees associated with buying sUSD, and if so, how do they compare to other cryptocurrencies or traditional financial transactions? I'd appreciate any insights or recommendations you have to offer.