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.
suitor suiter sautoir sitar story sutra sudor store stour sautoire storey souter suture sitter satori stoury stoure stourie stir star strew stroy stray stere straw steer citer strow stair stare satyr strawy setter satire stereo satara starry siddur seater sudary seedier sootier sudaria
suitor tor quittor nitre goitre vetoer foetor viator faitour biter bettor fetor kiter writer motor satori miter sitar loiter story liter detour titre waiter suiter retore gator niter nitro guitar tore tori gaiter torr tory rotor toro goiter tora citer sautoir mitre store meteor stour litre tour baiter titer tutor whiter
suite suit sit saute site suet suety sutta suttee suicide