Not yet an aggregator per se, as there are no people to submit the news, but I'm building https://littr.me/about https://littr.me/about, which is an (old)reddit

Not yet an aggregator per se, as there are no people to submit the news, but I'm building https://littr.me/about https://littr.me/about, which is an (old)reddit like link aggregator with ActivityPub support. The idea would be that communities can put up their own instances of it, and then participate in the larger fediverse and interact with one another. There's still some way to go, to fulfill this goal, but I'm slowly making my way there.