Immediately after selecting your hosting plan, you will be presented with a search bar that you can use to search for a domain. Type a domain into the search bar under the “Create a new domain” label. Then, use the up and down arrow in the field labeled .com to select the domain extension you’d like. Finally, click “Next” to generate a list of available domain names.
One thing we learned in reviewing the services listed here (and many more) is that even though the packages are very similar, they are not identical. Some are more security-focused than others, offering anti-spam and anti-malware tools. Others offer a variety of email marketing tools. While most of the hosts we've reviewed have built-in e-commerce, you may want to consider using a more-robust third-party online shopping cart application like Shopify instead.