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.
nauseant nascent nescient nocent
nauseant sent dissent resent puissant peasant bezant nascent missent lisente quiescent jessant issuant pheasant saint assent ascent senti sente scent santo passant pissant reascent descent wisent