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.
cuds cuts cods cads cuddies quids codas gauds caids cades kudos cutes quods kudus gudes codes cutis guids quads cadis coeds coitus caddis guides cutesy cuteys cuties cutties caddies gaudies codeias cutesie gods cots kids cats guts gads quits gowds coots cates coats gouts gutsy gadis qadis goads qaids goods kudzu cotes kadis
bauds buds feuds fuds cuds gauds lauds leuds mauds muds ouds puds suds duds yauds