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.
coercion crocein crocine croceine quercine grison coarsen garrison kerosene kerosine
coercion ricin warison sarcina brucin hircine horizon garrison grison quercine narcein orcein orcin orison porcine porcini porcino prison sericin characin