So this post will be about mysteries. Right now I'm reading Nightlife by Thomas Perry. He has written a lot of books, and The Butcher's Boy was outstanding. Nightlife has an unforgettable villain: a small, beautiful woman. Warning! This is not a cozy. The protagonist is a Portland police officer who finds herself turning in to prey. Perry writes tight, well written books. Nothing improbable happens. (It always bothers me when plots aren't believable.)
Other writers I follow: Dana Stabenow, Kate Wilhelm, Charles Todd, Ian Rankin, Sharyn
MacCrumb, Earl Emerson, Cara Black. I like mysteries with a sense of place. All of the above fit that. Stabenow's Alaska, Emerson's Seattle, Rankin's Edinburgh, Black's Paris are places that are very real. Sharyn McCrumb's east Tennessee gives a great feeling about the beauty of Appalachia, and lays over that an otherworldliness that haunts me.
Lindsay Davis gives us a funny look at early Rome in the character of Marcus Didius Falco. Charles Todd's post WWI mysteries have protagonist Scotland Yard Inspector Ian Rutledge haunted by his dead sergeant.