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.
nudist nudest neediest nuttiest nattiest nettiest nittiest nodosity gnattiest knottiest neatest
faddist odist nudist sadist feudist beadiest nuttiest hootiest mitiest bittiest loudest faddiest dost fattiest baddest meatiest batiste rudest pettiest judoist doughiest pottiest fideist voodooist ruddiest ruttiest nattiest jettiest rowdiest tattiest shittiest dowdiest chutist woodiest quietist widest weediest headset tidiest seediest footiest bawdiest dottiest reddest deadest didst cattiest zootiest guttiest modest matiest bedsit deist lewdest modiste moodiest gaudiest rootiest autist giddiest adust saddest nudest muddiest neediest haddest poutiest goutiest gnattiest reediest leadiest midst peatiest hadst rattiest nettiest lutist pietist haughtiest dadaist readiest maddest headiest battiest hoodiest oddest nittiest sawdust dust knottiest deediest sootiest dotiest doughtiest duettist tattooist wadset whitiest wittiest chattiest shadiest shoddiest
nudies nudes nudzh indies undies