If you’re willing to zap a few sats I think a very small minority of existing followers can be brought over to Nostr.

A lot of people follow me on other platforms for real estate content and mainly ignore my Bitcoin/Orange pilling but they still have fomo about it.

So I offered first 20 people to follow and DM me on Nostr I’d zap them. (Maybe 1000 people saw my stories) I think about 30 people did it, I think 3 stuck around and only one actively posts.