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.
panicle panically pinocle penuckle pinnacle pungle pinkly
panicle tunicle funicle sanicle binocle conical scenical nickle nicol binnacle nuncle finical manacle pinnacle pinocle cenacle cynical monocle uncle