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.
retiles retails rutiles reutilize retallies redials retells retools riddles rootles ridleys rattles reddles rootless rotls rattails ratals ratels raddles radials rituals rodless ruddles roadless radulas
tiles stiles retiles rutiles motiles tils ediles vittles aediles poetless doilies nautilus rootless fettles bodiless pitiless dailies teles meatless tales knotless heatless cuittles mottles footless idles beatless settles shitless witless wheatless wattles tittles tattles details stoles stales mutules feetless toiles tuilles etoiles tills pettles bootless netless tailles toles matless motleys beetles citoles rootles littles footles mettles bottles audiles coattails fatless guttles gutless tules tails outlies battles retails coatless toils rattles seatless pottles cattails cuttles kittles hatless butles nettles hitless rattails sidles kettles steles stills styles dottles titles tootles wattless whittles sheetless shuttles
retile retail retally retell rutile artily