I totally have reader's block right now, too. And like you say, it's largely because of fanfiction. Partly I think that is reasonable and accessible (I don't care how about your poorly disguised "futuristic" politics or the physics of your spaceship or how depressed everyone is, GIVE ME THE FEELINGS) and partly a little unfortunate (fandom is so good at giving me what I want without any effort on my part that I balk a little now at having to make some). But, quite frankly, fandom has a much better bead on the things I care about than profiction does. I get good writing and complex, nuanced characterization AND HAPPY ENDINGS. And sometimes I even get starships, too! In spec fic, especially, pro fiction these days does not come even close to what I want to read. So I pretty much thumb my nose at the publishing industry and go back to reading fic.

That said, there are definitely books I want to have read. A bunch of nonfiction, and also some "important" SF that I just think I *ought* to read, you know? And instead right now I'm reading Pratchett and Diana Wynne Jones and rereading Gaiman's The Graveyard Book. So.

Speaking of nonfiction, I may have recced this to you before, but: An Elegant Madness, by Venetia Murray. It's a cultural portrait of high society in regency England, sparklingly written with just the right amount of overview and detail and scandal. I found it especially nice for giving me some context for Austen and especially Georgette Heyer. (Cotillion will make so much more sense after you read this.)