Had some time to come back to this. I am trying to figure out which ones still work. All of the ones listed in your screenshot are still there. Several of them point to other topics that are also still there (including “editors-picks”).
I thought there might be a list of the topics at:
But that gives a page not found ;(
I did find one other (somewhat) hidden one: History.
I couldn’t find poems, poetry, opinion, essay, or humor. I may try to explore more another time.