NameStall is a $10 per month domain generator that stands out by allowing you to curate highly customized domain lists. Input a search term, and then customize the list by choosing various criteria. For example, you can choose to include only nouns, or focus on niches like real estate, transportation, design, or travel and hospitality. You can also choose from among 100-plus extensions. NameStall is best for companies needing niche-specific 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.