Where to buy SMT coin?

I'm interested in purchasing SMT coins but I'm not quite sure where to start. Could you please provide some guidance on the best platforms or exchanges to buy SMT? I've heard of a few options but I'm not sure which one is the most reliable and secure. Additionally, I'd like to know if there are any specific requirements or steps I need to take in order to complete the transaction successfully. It would also be helpful if you could share any tips or advice on how to store and manage my SMT coins safely. Thank you for your assistance in this matter.