If you play with Fabric and like to tame horses, then Horse Debug Info mod can be very useful. With it, you can choose the best horse by evaluating its speed, jump height and HP reserve before taming.
Seeing horse information is easy. To do this, turn on the debugging screen (F3 button by default) and move the cursor over any horse. Detailed information will be displayed next to it: speed, jump height and amount of HP. Now choosing the perfect horse will be much easier.