This is part of the L.A. Times 2021 gift guide. $28.99 | 👉 Purchase here Something New Under the Sun Anyone who really wants to know L.A. would benefit from Alexandra Kleeman’s hilariously creepy new novel, the realist dystopia we can’t escape. Gary Shteyngart’s modern update of “The Decameron” — that classic set of stories told by exiled Florentines riding …