The best way to do that was by getting a bluesky invite early on.

The second best way is to tell bluesky users you encounter on other platforms why you're not there, and convince them to lead people here from there.

The third best way is pretending an account there might be worthwhile, until your attempts to post there have been proven a waste of time.

I don't have any place on the list for promoting a tool that aims to make bluesky a more convenient way to access nostr than spinning up an npub