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.
recent reascent resent reascend resend rescind resined resound rezoned reasoned resigned resinate resinoid resonate
cent docent decent nocent lucent quiescent nascent ascent scent recent reascent descent nescient duecento nauseant dissent cento scend lisente ascend senti assent reascend descend sent resent licente missent sente centu seicento wisent