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.
whistle
istle whistle distal style distil diastole wrestle rustle pustule pistol pestle nestle misstyle stale stele stile stole bastile systole eustele bustle hostile hustle jostle justle castle listel moistly hypostyle pistil pistole restyle wrastle citole