Wow - https://www.thisworddoesnotexist.com/ https://www.thisworddoesnotexist.com/ is a really useful resource. I would use this not only for usenames, but from

Wow - https://www.thisworddoesnotexist.com/ https://www.thisworddoesnotexist.com/ is a really useful resource. I would use this not only for usenames, but from brand-names. They are quite a few whihc can be registered as .com