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.
cyclin cyclone skyline scallion scullion scalene scaleni
cyclin cauline dicliny skyline scallion reguline picoline nuclein cline clon colin cullion gallein guyline kalian kaolin kaoline acauline aquiline baculine figuline neckline picolin recline clan scullion decline tagline