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.
rocketeer rocketer racketeer rocketry racketier ricketier requiter raggeder rogatory ruggeder raggedier
racketeer rocketeer picketer pocketer racketier ricketier rocketer skeeter
rocket racket rackety rickety rocked brocket frocked crocked crocket trocked