Different ways to pick based on everyone's own priories. Maybe cost, maybe performance, maybe feel? If performance is your main concern, do the fitting questionnaire here on the website. That will give you a good starting point. From there, take a couple of options to the course and play both until you decide which one gives you the best overall performance to what you are trying to achieve (distance, accuracy, feel). Good luck!

www.titleist.com/golf-ball-fitting-tool

I have tried a number of balls but i do like AVX low spin ball which gives some distance reacts like pro v on the greens suits my game