Malafrena by Ursula K. LeGuin. Unlike her more well-known fantasy and science fiction works, this is a sort of fake 19th century European novel set in a fictional country. It’s damned good, she really nails that Tolstoy tone.
I also just finished The Devil in the White City by Erik Larson (nonfiction account of the production of the 1893 Chicago World’s Fair and H. H. Holmes’s concurrent murder spree) and The Girls by Emma Cline (new novel loosely based on/inspired by the Manson family). I thought both were very good, though the Larson dragged in places and the Cline wasn’t exactly a pleasant reading experience.