I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
fiancee fiance finesse faience fancy fanes fence fines fannies fans fins finos finis fanos vanes fawns foins fauns vines faenas faunas fewness feyness funnies vinasse
fiancee fiance hance jaunce lance launce nance nuance rance ranees seance dance chance