Like Facebook event and marketplace replacements on the fediverse. Or just a Facebook alternative that isn’t Frendica. Or maybe a commercial fork of Frendica.
What? Why? How? What?
There's no reason monetisation can't be built into the Fediverse as it is. Ghost is looking like a good replacement for Substack for those that want to monetise their blog/newsletter. Flohmarkt is a Fediverse classified ads service. I don't think it'll be long before we see an Fediverse Patreon or eBay, for example, I just suspect the early Fediverse adopters have been so anti-capitalist that they have either rejected such things or overlooked them entirely. However, it'll be key for getting content creators to move over to the Fediverse as they'll want to keep their income stream.
In the meantime, more attention on the Fediverse should mean grant money flows in and crowd funding takes off.