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.
suint saint snot sienite snit sinuate sent senti sound scent snout snoot santo sente sonata sundew sanity senate sonnet snouty sennit snooty snotty seined sennet sained sinned seniti sundae signed sunned saunaed cent sand send sned
quint suint bounty annuity quant lint quinta lunet cunt kainit count mount mint painty saint pint jaunty runt inti punty chaunt giant pointe haunt punt haint pinto unit hint vaunt dainty dint taint tenuity fount vaunty junta county pinta bunt junto pinot minty paint quaint biont gaunt lunt quinte linty faint joint bint point into tint taunt dunt daunt feint aunt runty jaunt hunt riant binit punto aunty pointy unto shunt
sun sin sain sauna seine sienna sign sine sinew sinewy sinh sunn sunna sunnah sunny