Especially PieFed, with its onboarding wizard asking the user what topic areas they are interested in, and then subscribing to relevant communities. Also it asks how often someone wants to hear about Musk or Trump - never, a little, or no filtering. And then the categories of communities, which are now user-customizable and shareable, further aid discovery. Plus (omg it really does just keep going!) PieFed now knows about all communities on all instances, regardless of whether anyone on the PieFed instance has ever subscribed to it or not.