What to Know  A travel writer’s cousin tested out 19 different pairs of running shoes before a podiatrist recommended the Asics Gel-nimbus 27 Sneakers .  Keep reading to shop the podiatrist-approved style , plus more Asics shoes from $65.  Training for a marathon will quickly humble you—and for my cousin, Jamie Harris, that lesson came in the form of blisters, sore arches, and a rotation of sneakers that just didn’t cut it. While preparing for the New York City marathon, she tried out 19 different pairs while logging miles, hoping each new option would be the one . “I kept thinking, maybe it’s just me,” she said. “I thought maybe I just needed to break them in longer, but every long run felt harder than it should have.”  After dealing with lingering soreness and frustration, she finally booked an appointment with a podiatrist—who quickly identified the issue: she wasn’t getting the level of cushioning and support her feet actually needed for distance running.…