How to buy alephium on Coinbase?

Could you please guide me through the process of purchasing Alephium on Coinbase? I'm interested in investing in this cryptocurrency but I'm not sure how to go about it. Is it a straightforward process? Do I need to create a new account or can I use my existing one? Are there any specific steps I should follow to ensure a smooth transaction? Also, what are the fees associated with buying Alephium on Coinbase? I'd appreciate any help you can provide.