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.
fuds feuds feds fads fids fuddies fetus foods feods fidos feeds fados fades foetus foodies fatuous futz vids fets fats fouettes fits fates fatso feats fetas fetes fiats foots phuts vatus voids
bauds buds feuds fuds cuds gauds lauds leuds mauds muds ouds puds suds duds yauds