https://nostrplebs.com for example

You can get verified for free here too : https://www.nostr-check.com/

The verification is only for ease of use purposes, so for example if there is 100 Carolyn in Nostr.

The handle Carolyn@nostr-check.com will be unique and people can look for you while using it.

If you wanna be "SatoshiVibes.com" I can manually add you to my list I got my dungeon.

If not then what others recommended. You need a "Free NIP-05 Handle" provider . Not so much verififcation as identification imho. Ppl that have their domains do their thing. Others pick what they like out of the free ones

Www.SatoshiVibes.com/NostrFAQ

Another option is to get account on https://stacker.news and then in settings there paste your nostr npub and then back in your nostr app add your_sn_username@stacker.news .

This option is free and for plus points you get SN account 😊