I know there used to be good youtube channels, but if you do a search its just "here is how to set up your email to get coinbase!"
You can use your available email for registering an account at Coinbase easily, but later steps are more difficult.
Coinbase exchange is KYC so if you are not US citizens, you will have problems with KYC there.
Lastly, I want to share something that you need to know about Coinbase, its expensive withdrawal fee.
Problems with Coinbase Withdrawal Fees.