I miss the random non tech centric communities from Reddit. The userbase here, across the fediverse as a whole gravitates towards more tech focused aspects and while that's fine, you miss out on the random topics / subreddits you'd find on Reddit.
(The answer isn't also 'just start that community here', specially I miss randomly getting topics from subjects I wouldn't even search for, but just get surfaced because of the shear amount of content and users Reddit has)