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.
finessed finest fainest finniest fenced funest fancied funnest vainest viniest fawniest fenniest funniest veiniest
finessed knesset jonesed lensed mensed censed sensed tensed unissued
fines finesse fins fanes finis finos foins vines