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.
ouds ods odas odds odes outs odahs odious outsaw outsay outsee odyssey oats oots ottos
bauds buds feuds fuds cuds gauds lauds leuds mauds muds ouds puds suds duds yauds