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.
fibulas foibles fabulous fables ghiblis
fibulas nebulas tabulis doblas qabalas babuls lobules kiblas keblahs kabbalas kabalas cabbalas cabalas abulias kiblahs balas bulls buhls bolas blaws blase blahs aboulias tablas tubules