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.
resent reascent recent resend reascend rescind resined resound reasoned resigned resinate resinoid resonate reassigned rezoned
sent resent missent wisent dissent assent centu snit lucent sente send scent bawsunt puissant cento nauseant nocent peasant snot senti duecento cent decent reascent missend nescient pheasant passant jessant pissant resend lisente licente nascent ascent recent seicento descent docent quiescent
reseen resewn reason reassign resawn resign resin resiny resown risen arseno