How to buy Radix on MetaMask?

Could you please elaborate on the steps involved in purchasing Radix tokens using MetaMask? As a cryptocurrency enthusiast, I'm familiar with the basics of wallets and transactions but am particularly interested in the specifics of acquiring Radix. Could you guide me through the process, starting from ensuring I have a funded MetaMask wallet, to finding the appropriate exchange or platform, and ultimately executing the purchase? I'd appreciate any insights you could provide on potential fees, security considerations, or any other important aspects to keep in mind while undertaking this process. Thank you in advance for your assistance.