Please don't take this the wrong way, but the Fediverse seems like a great foundation on which to build a sustainable Internet economy.

Think about it: the Fediverse encourages self-hosting, so a hosting company specialised on Fedi software and hardware needs could be profitable. I know there's already at least one project like this.

What about #PeerTube? Authors in the same area or with similar creative itches could set an instance up, share costs and monetise it with donations or sponsorships. Same could be done with #Funkwhale for podcasts.

Microblogging and blogging platforms can be used to publicise and discuss such projects.

Every step of the supply chain can be independently funded and managed without external interference from BigTech companies.