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.
lacrosse lackers lakers lucres lycras laggers leakers lickers lockers leaguers licorice likers
crosse lacrosse carouse cross crouse gross grouse kaross across agarose necrose recross rockrose scariose squarrose sucrose