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.
stour stoure stoury stourie story store satori suture suitor storey souter stir star sautoir sautoire stere sitar satyr sutra stair strew stray sudor stria straw stare steer stroy strow seater suiter sudary satara setter siddur striae satire stereo starry sitter strawy sootier sudaria hysteria
tour faitour detour stour tor tory mature fetor motor auteur odour vetoer story foetor sautoir rotor hauteur viator stoure suitor datura tutor gator dour torr meteor tori store satori retore nature bettor quittor tore feature couture doura tora toro stoury suture future watthour
stoa stoae stoai stow soused toused