Red Hood and the Outlaws, Nightwing and Batwoman are the ones I follow. Batwoman is the best of the bunch, I love the art and current arc with Wonder Woman is fantastic. Red Hood is fun read, nice mix of characters and interesting moments with all the main cast. Also it has the tie ins to Batman so it adds to those stories as well. Nightwing is ok, I'm probably only reading it because it's Dick Grayson, it also has the tie ins, but it's less exciting than the other two.