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.
daisy dais dis dies diss days daws dahs dicey disci dizzy dioecy dassie tis tas dos tissuey taws ties dace tass daze dees dews deys dose teas doss does dows dozy duci dues taos taus dice duos tuis
daisy ais chais sissy massy dais sassy raise raias paise paisa noisy queasy missy cissy quais bassy kissy gawsy gassy hissy easy rais liaise chaise