If you like @mattfractionblog‘s Hawkeye, and you’re willing to go back a ways, John Ostrander’s Suicide Squad or the Giffen/DeMatteis/Maguire JLI are two superhero books from the 80s that really did a lot to define and contemporize the genre. For something super modern, I’d say Brenden Fletcher’s Black Canary is one of the best books DC has done recently.