What tennis string for low launch angle? Not poly string

If you're looking for a tennis string that will give you a low launch angle, you may want to consider a multifilament or natural gut string. These types of strings tend to have a softer feel and lower stiffness, which can help reduce the launch angle of your shots. Some popular options include Babolat VS Natural Gut, Tecnifibre X-One Biphase, and Wilson NXT. However, it's important to keep in mind that string selection is a personal preference and what works for one player may not work for another. It's always best to try out a few different strings to see which one suits your game the best.