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.
piacular peculiar
facular secular jocular piacular ocular locular macular vacuolar declare eclair regular claro ligular jugular clear gular peculiar scalar clary nuclear tegular
picul apiculi spicula spiculae spicule