Kepler rhymes with:
keppler, epler, eppler, hepler, heppler, keppler, peppler, shepler, weppler, coupler, doppler, epler, eppler, hepler, heppler, hippler, kappler, kempler, keppler, krempler, oppler, peppler, poplar, sampler, shepler, stempler, templar, wampler, weppler
Kepler sounds like:
kabler, kapler, kappeler, kappler, keebler, keppler, kevlar, kibler, kobler, koffler, kofler, kubler, kuebler