How to buy SOL instantly?

Could you please elaborate on the steps involved in purchasing SOL instantaneously? I'm interested in understanding the entire process from start to finish, including the necessary platforms or exchanges to use, any verification procedures that may be required, and any fees or charges associated with the transaction. Additionally, I'm curious about any tips or considerations to keep in mind when making such a purchase to ensure a smooth and secure transaction. Thank you for your assistance in clarifying this matter.