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.
knoll knolly knell nolo null noil noel nill nelly noily kneel nellie nielli niello nullah nil nail nala
knoll coolly woolly toll doll poll null noil nill knell molly moll lolly loll quoll golly colly boll jolly holly hollo holla folly knolly noel nolo olla roll dolly wholly cholla