Rattling rhymes with:
prattling, spratling, gatling, prattling, spratling, bartling, dettling, etling, gatling, hartling, hurtling, nestling, prattling, spratling, startling, wentling, westling, whitling, whittling
Rattling sounds like:
redlining, retailing, retailing's, retelling, retooling, ridling, rototilling