Somerton rhymes with:
palmerton, agerton, alderton, allerton, alverton, anderton, atherton, beaverton, betterton, bickerton, brotherton, caperton, catterton, chatterton, chesterton, cullerton, edgerton, egerton, everton, fullerton, helmsburton, lamberton, leaverton, lumberton, netherton, overton, palmerton, pemberton, pinkerton, stellarton, tetterton, warburton, winterton, woolverton, yelverton
Somerton sounds like:
samaritan, sammartino, sanmartin, smarten, smartmoney, summertime