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.
clepes clypeus claps clips clops calipees keleps callipees calliopes kelpies collops calypso glops gulps kelps galops kalpas gallops collapse
clepes floppies shleps whelps slypes slipes saleps kelps keleps callipees calliopes calipees juleps jaloppies jalopies helps elopes leaps blypes bleeps beleaps loupes lopes clypeus kelpies pileups sleeps slopes talipes shlepps yelps
clepe clap clip clop clypei culpa culpae