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.
ridleys riddles rodless raddles rutiles retiles ruddles reddles roadless radials rattles retails redials rituals rootles radulas rattails rootless retallies reutilize ritualize rotls ratals ratels retells retools
medleys diddleys ridleys riddles ediles foodless doodles doyleys huddles paddles buddles roadless weedless muddles modules needless ladles boodles lidless caudles chadless raddles toddles peddles budless headless poodles heedless widdles aediles fiddles ruddles seedless daddles deedless odyles nodules beadles aidless padles rodless fuddles meddles noodles leadless diddles noddles addles coddles audiles deles cuddles godless piddles middles oodles waddles motleys toadless diddlies dawdles sidles saddles bedless needles dales idles reddles hoodless puddles heddles wheedles woodless doles yodles