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.
roquet roquette rocket rogued ragout requite react recta recti recut racket rugate rocked rucked rooked recoat recode rugged rackety regatta rickety ricotta
bouquet coquet piquet roquet toquet quiet quit baguet loquat piqued squat diquat chaqueta