Gideon the Ninth. Hands down. The book is 100% strong female POV, which I usually like, but as dude, I was missing a lot of subtlety. My kid lent me their audio book and holy shit, Moira Quirk does an absolutely fantastic job. The characters jump right out of the speakers and into my brain, highlighting all the understated humor that I was missing. 10/10, wish I could hear it again for the first time.