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.
pistole pistol pestle pistil pustule pastille hypostyle pastel pastil postal postally
stole diastole systole pistole istle hustle wrestle rustle pustule pestle eustele pistol hypostyle misstyle justle jostle nestle hostile bustle style citole stool stile stele stale sotol castle bastile wrastle restyle whistle
pistou pesto piste episode pst