Maximilian rhymes with:
milian, chilean, gillian, jillian, kilian, lilian, lilien, lillian, lilyan, milian, sicilian
Maximilian sounds like:
macmillan, macmullen, mcmillan, mcmillen, mcmillian, mcmillin, mcmillion, mcmillon, mcmullan, mcmullen, mcmullin, muskmelon