Your best bet for petite-friendly suiting is going to be Ann Taylor, Banana Republic, Express, J. Crew or a larger department store like Macy’s or Nordstrom. Unfortunately, in many cases, the in-store selection for petites will be small, so you’ll need to order several options online and return what doesn’t work for you. There may be an initial investment for these pieces, but I recommend buying the best quality suit separates that you can afford so they will last you for years to come.