bellsov on Nostr: Two question as I get started here - - is there an easy way to find the Nostr ...

Two question as I get started here -

- is there an easy way to find the Nostr accounts associated with X accounts (assuming the Nostr account exists)

- how can one identify legit accounts of popular Nostr users? Right now I'm going based on highest follower count among the various impersonator accounts