Buckling rhymes with:
chuckling, duckling, suckling, chronicling, chuckling, conkling, crackling, duckling, fickling, heckling, hickling, inkling, mechling, pickling, rankling, sparkling, sprinkling, strickling, suckling, swashbuckling, tackling, trickling, weakling
Buckling sounds like:
baselines, beguiling, bicycling, boggling, bugling