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.
woolen woollen
woolen clean solon sileni pollen pleon olein kaolin glean mullein galleon gallein galena colon colleen leno xylene colin violin mullen tolan sullen solan relleno poleyn plena melena lean glen lien alien baleen fallen villein woollen
wool woolie woolly wooly whole wholly awol