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.
fawns fans fanes fanos fauns faenas faunas fons fannies vans fins fens funs fewness foins fancy vanes finos fohns fines finis fiance foehns faience feyness fiancee finesse funnies vainness
awns yawns pawns dawns fawns lawns peans snaws owns ansa pans bans cains vans fans paeans nans panes manus cans janes nanas vanes pains sanes fanos kanes sains beanos yeans chains wins weans wanes towns tans downs manse pians pansy koans mans guanos hansa gains naans anus kains knowns ruanas llanos lanes ranis canes gowns means kaons ains fauns tains banes gnaws banns guans dans anes fanes anis beans jeans lianas manes kanas rains lauans pianos mains manos roans manas anas hanse lianes wyns leans wons moans deans loans tansy wains queans wans wens sans canso yuans
fawny fawn fan faena fain fane fanny fano faun fauna faunae