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.
dos dose doss duos does dows douse dowse dis doughs dahs dais toss dies tows deys dozy dees dews toes diss days toys taos dues doze daws toeas daisy douce diazo touse disci doozy dassie dioecy doozie