I’d start these myself, but don’t have the time to moderate them.

Out of the Loop: Lemmings request to be updated on recent news, trends, and similar

ELI5: A community where Leminnings can request that complex ideas/knowledge it explained in layperson terms (not actually 5 y/o level tho)

BestOfLemmy: A community in which Lemmings cross-post the best posts & comments on Lemmy

AskScience: A place where Lemmings can ask science-related questions and relevant discussions.