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.
stair stir star sitar stare satire satara starry sautoir sootier sautoire store satyr strew stroy story steer strow stour sutra stria straw stray stere sadder suture suitor sudary satori storey striae setter seater siddur strawy souter sitter stoury stereo suiter stoure seedier stourie sudaria zootier hysteria
stair tar hetaira puttier tare cottar gnattier nettier nadir dietary notary retear midair pettier ottar pottier goutier tier guttier taro dottier deair chattier whitier satire tuatara tatar rootier tahr stare ruttier zootier votary jettier sitar dairy tiro meatier cottier battier nittier sootier pitier nuttier peatier guitar matier haughtier dotier knottier nattier mitier tire tear cattier poutier attar metier sautoir doughtier stir star attire footier rattier satara datary fattier rotary retire hootier tattier wheatear bittier wittier shittier
sadi said satay sati seta setae staw stay stoa stoae stoai tacit