The older Columbus suburbs inside 270 are Worthington, Upper Arlington, Grandview Heights and Bexley. There are some itty bitty gems too, Minerva Park, Riverlea, Marble Cliff.... Dublin, Hilliard, Gahanna and Westerville are outside 270 and although they have charming old downtowns (or an Uptown in Westerville's case) they are still growing communities. New Albany is popular for those that can afford it. Outside Franklin County Powell and the Lewis Center area in Olentangy County are popular. I work on the north side primarily so these are the suburbs that come to mind. The BIA Parade of Homes is coming up and it is in Grove City this year.