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.
scout scut scot sickout scoot scuta scute scottie sect scat scud squat scatt scudo scudi scatty socket sukkot squatty scad skat skit
scout cut cot scot dacoit scute scut recoat gout recut knockout cote lookout coat coot ragout dugout checkout picot cute gouty acute wyliecoat dicot sickout scoot scuta pigout agouti lockout takeout peacoat cookout bugout boycott backout agouty shakeout