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.
visit vista viscid vest fist vast foist feist vasty vised vesta vestee visaed viseed feisty fiesta fissate fast fest
visit sit fist feisty feist suit site jesuit foist casita gooiest lawsuit misty missuit neist piste resit wriest wristy zizit zooiest doughiest whist shiest list heist vista maist hist hoist gist hygeist hygieist joist hessite coesite kist licit mist moist piosity posit resite wrist cist zoisite deist waist wist shist