Mastodon’s “Explore” section does a good job of aggregating the “Trending” [whatever that means without a real algorithm] posts from all servers that federate your instance, so the kind of front page experience you’re describing is definitely within the realm of possibility. Someone would just have to build it.
I’ve been a Kagi user since launch, and it has completely replaced everything for me except image searches. It’s the best $10 I spend each month.