To redirect one domain to another, you first need to ensure you own both domains you want to use. If you need to purchase a domain, you can do so at the link below.
To redirect one domain to another, log into cPanel and search domains in the search bar at the top, then select addon domains from the search results. Once in the addon domains screen, type your new domain name into the "new domain name" bar and click the blue "add domain" button.
Once you have added the domain, it should appear at the bottom of the screen under the addon domains list. From there, you can click on the "manage redirection" button on the far right. This will take you to a second screen, where you can type in the address you would like the addon domain to redirect to. Once this has been typed in, click save and your redirect is complete.