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.
udons
dons radons codons voudons guidons redons udons maddens vodouns atones moutons cytons adonis dins nitons maidens hoydens boudins phaetons toons putons lowdowns towns iodins tauons rattoons rhytons chitons tonus dedans suddens soudans setons saddens ratoons boutons reddens betons tons tones codens jetons hoedowns dans buttons futons voudouns mutons mueddins duns redans lodens jettons loudens donas hoddins phytons voduns batons cottons dens muttons hoidens odeons hoddens ladens donsy middens photons godowns ketones newtons pitons leadens rattons downs sedans soddens stones deadens duotones widens showdowns