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.
whidah whydah whid what whit wide wheat white whity widdy widow whitey widdie wad wat wed wit wud
whidah dah houdah howdah idea keddah odah oidia sidh whydah chuddah