How to buy SXP?

Could you please elaborate on the process of purchasing SXP? As a potential investor, I'm interested in understanding the steps required to acquire this cryptocurrency. Is there a specific exchange or platform where I can buy SXP? Are there any prerequisites or account verifications I need to complete before making a purchase? Additionally, I'm curious about the available payment methods for acquiring SXP and any associated fees I should be aware of. Could you provide a step-by-step guide or outline the general process for buying SXP? Thank you for your assistance.