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.
recut recta recti recto react recoat requite recode rocket ragout recked racket roquet rackety regatta rickety ricotta wrecked roquette
recut cut cute acute react recta recti recto scout scut scuta scute sect takeout tecta shakeout
rec reck wreck areca dreck drecky