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.
fibula fibulae foible fable feeble feebly ghibli viable viably fabliau
fibula nebula tabuli dobla nebule blae kabbala kabala cabbala cabala fibulae babul aboulia abulia kibla bulla buhl bola blaw blah keblah kiblah lobule bull qabala nebulae nebuly tabla tubule