Do you mean nip05?
You can get nip05s for free from various places.
Zaps.lol for eg
7fqx
npub1nj…k7fqx
2024-09-23 13:02:08 UTC
in reply to nevent1q…rvt3
Author Public Key
npub1njst6azswskk5gp3ns8r6nr8nj0qg65acu8gaa2u9yz7yszjxs9s6k7fqxSeen on
wss://offchain.pub