The best alternatives to DomainFox are ZEIT, Domainr, and Domain Comet. If these 3 options don't work for you, we've listed a few more alternatives below.
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AuthKit— The world's best login box, powered by WorkOS + Radix
The fastest way to find a relevant domain for your new project. Every TLD, any registrar. The r stands for research. “I love domainr on there like every day haha”
Domain Comet makes it easy to monitor your own domains, your client's domains or the domains that you might like to purchase one day. We monitor registration details (registrar, status, expiry date), SSL certif...