Otoh what Google's terrible at is finding new sites with interesting content. If you don't already know where your going, you mostly end up in spam land. I'd like to see a search that addresses that.
Browsing through directory trees is complimentary to search, and has its own power for surfacing unexpected connections, i.e. information you didn't necessarily know you were looking for. I would love to see something well maintained like that again.
Asking ChatGPT for websites about a topic does a fairly decent job, it seems. At least, it doesn't give me any spam.
Mastodon is similar to the old decentralized discussion boards - each server run by its own admins, and specific to a set of narrow topics.
The question is if it should be human/user curated, or automatically generated with e.g. some AI.