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.
nickels nickelous nickles nicols knuckles neckless knockless niggles nucleus necklace nuclease
nickels deckels shekels chuckles tackles huckles nickles knuckles muckles mickles mackles keckles cockles cackles keels ruckles koels hackles vakeels buckles akelas jackals pickles sickles suckles heckles skells deckles tickles shackles yokels