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.
quality quilt galiot guilty quailed galliot quillet cult quaalude kilty culet guilt gault culti cullet gleety gullet clotty galoot callet gallet galleta quelled galloot cullied gullied calotte gallied galette galatea galeate quilled culotte gallate
quality reality duality alit tallit slitty daylit salty jollity polity nullity malty realty lealty halite velleity vaulty fealty faulty laity galiot hyalite lit alt
qualia quail quale equal equally quakily squall squally