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.
ricketier racketier rocketer racketeer rocketeer rocketry requiter raggedier rector reactor rectory raggeder ruggeder
racketier ricketier picketer pocketer racketeer rocketeer rocketer skeeter
rickety racket rackety ricked rocket wricked bricked cricked cricket pricked pricket tricked