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.
kudos kudus kiddos kids koodoos cuds kiddoes quads kadis kudzu guids kotos quids quods gauds gudes quotas kotows guides ketose quoits quotes keddahs gaudies kiddies kowtows cuddies guts cods cots cuts kits gods gads kats cads
judos kudos udos dos buds rodeos leudes voodoos quads autos gauds radios guids fuds adios does videos feuds doss eddoes duos lauds nodous shadows dose audios lidos mauds muds ouds kiddos dows dudes dots sudds sudsy dados didos dodos redos redoes duads nudes nodose puds judas rudds dadoes suds quids dodoes didoes kudus roadeos quods meadows ludes fidos doodoos vadose vodous hoodoos iodous cuds fatuous kiddoes leuds fados eidos ados bauds duds gudes widows koodoos yauds