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.
abbey abbe aby abba ab aba abo
abbey bey bubby bobby baby babe abbe kibbeh nobby knobby obey ribby dobby tubby chubby yabbie hobby cabbie hubby cabby cobby cubby gabby kebbie kibbe lobby knubby nubby rebbe rubby tabby webby shabby yabby