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.
strait strata strati striate striata sturt start strut saturate stearate stride street satyrid storied stretta stretti stretto steroid strette citrate siderite seatrout hysteroid sturdy stored strode stroud stared starred steered stirred sutured stereoed
trait strait cutthroat butyrate attrite federate adroit trite outwrit attrit territ nitrite patriot reiterate meteorite citrate maturate siderite literate treat hydrate strati deuterate moderato diorite futurity laterite quadrate deaerate iterate quadrat derat derate feterita drat outwrite droit literati outrate rehydrate nitrate retreat moderate saturate maturity stearate strata dehydrate titrate
straw strawy stray storey astray store stroy stir striae stereo strew story starry stere stare star stair sitar satara stria strow sutra estray