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.
anile anil anele anole anal annal annul anally anneal annual annuli annually
penile anile senile nil bonnily manille rainily nail anole anil noil henley anele pinnule biennial canaille venial hymenial biennale sunnily zanily denial tenail tinily toenail chenille loonily nill manila punily pinole finial moonily finale penial menial renail genial venule veinule cannily lunule phonily funnily snail xenial zonule tawnily tenaille tinnily unnail shinily