Rattler rhymes with:
beitler, beutler, bitler, boteler, cotler, gertler, gettler, guettler, gurtler, hatler, hochstetler, hostetler, hostettler, hostutler, huffstetler, huffstutler, hufstetler, kettler, kittler, kotler, littler, masteller, mosteller, outler, pautler, schettler, schnettler, settler, sitler, subtler, zeitler
Rattler sounds like:
radler, raedler, redler, retailer, riddler, ritthaler, roethler, rothweiler, rototiller, rottler