Bike setup
Compare Flat and Drop Handlebars
Look at the hand positions you use and the reach to the controls. The bar shape is only one part of the bike's overall fit.
Put it into practice
Try each setup in a setting where you can focus on comfortable control. Check whether you can easily reach the brake levers from the positions you plan to use.
Before your next ride
Use the riding you expect to do most often as the basis for comparing the setups.