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.
lettuces lattices latices lotuses lutzes lotoses
lettuces caduceus situses reduces meatuses lotuses lattices latices quietuses coituses hiatuses deuces foetuses fetuses educes adduces taces duces notices seduces deduces