You will enjoy Colleen McCullough, she has five or six books written about Ancient Rome, "First man in Rome" (Marius), "October Horse" (Sulla), "Caesar", etc, etc... they end with Caesar's death but then there is also a couple about Marc Anthony and Cleopathra. Not some thrash, very well-written. Details, including insulas and dwellings, food, armament, army habits, she did a great job. She also has own illustrations, of faces, Marius, Caesar, his daughter, etc. For those who do not know her, she is the author of "The Thorn Birds", an internationally acclaimed bestseller, and a real writer, not just someone writing about history.
Mary Renault - pretty good, but I like her Britain-based "the Charioteer" more than her Greek fiction.
Paul Doherty writes interesting mystery historical fiction. His hero, a physician in Alexander the Great's army, is also a detective and solves many murders. Fun!
And of course, some of Agatha Christie's mysteries were based in Ancient Egypt.
And my favorite Maurice Druon, "The Accursed Kings", based in the time of Philip IV le Bel of France, and till the beginning of the Hundred-Years war.