LeanDomainSearch is a free domain name registrar provided by WordPress. You can search for a domain by first inputting a keyword. LeanDomainSearch then generates a list of available .com domains with that keyword. When you select a domain, LeanDomainSearch will check to see if the name is available as a Twitter handle, and then guide you to register your domain with Bluehost. LeanDomainSearch is best for companies that use WordPress for their websites.
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.