I have a (somewhat incomplete) list of media (games, TV, movies, books, etc.) I have liked enough to recommend at https://osmarks.net/otherstuff/. You can submit recommendations (for books, short stories or other primarily-textual media only for now) for things for me to read as answers for this question. They will be resolved YES if I enjoy them and add them to my recommendations list. (I don't know whether the market mechanics allow this, but I will resolve to NO if I really dislike something and drop it assuming it is).
Note that a major risk here is that I don't actually get round to reading your recommendation because I have a very long queue and am easily distracted.
You might want to use a bounty system for future markets like this - everyone has to put down M25 they won't get back for each option they add, so everyone will probably lose money overall. A prediction market would make more sense if it took tons of effort to evaluate each option and you wanted to prioritize evaluating the best ones
@CDBiddulph Wait, for some reason I thought your "recommendation list" was a list of books you wanted to read but hadn't necessarily read yet. Ignore the last sentence of that comment
@TheBayesian I intend to extend the close date as long as I am alive and reading things, so this should not happen. Should I become unalive or incapable of reading, I suppose everything would resolve N/A.
I have actually read HPMOR. I don't think I thought of it when I was writing the recommendations list for some reason, but it might be good enough to qualify, though I would probably want to skim-reread it before doing so.