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.
sent sente scent senti senate sennet seniti sennit send snot cent snit sienite centu snoot suint snout cento scend santo saint sonata seined centai sonnet sanity snooty snotty cenote snouty sand sned sandy saned snide snood sonde sound synod
bent vent hent gent kent lent pent rent cent scent sent dent tent went shent