To figure out what type of running shoes you should buy, you first need to know what kind of feet you have. As long as you pick a running shoe that doesn't counteract your foot type, you shouldn't encounter any problems. But please don't just buy shoes recommended by others because they have no idea what type of feet you have. You should go to a running speciality store and get a gait analysis, a knowledgeable salesperson there can help you find the right running shoes.