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.
orcin orcein orison
orcin crocine soricine sarcina porcino porcini porcine orcein narcein quercine crocein ricin coercion hircine brucine brucin boursin sericin characin