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.
dreck drecky drek dork dreg trek dirk dark derrick drouk track trick truck drake darky dorky daric trock duroc hydric tricky darkey drogue dreggy darkie druggie trickie drag drug torc turk
wreck reck dreck rec greek areca brock crick wrick creak derrick hayrick barrack arrack carrack phreak areic freak drecky track trick truck choreic prick cruck break brick wreak ruck rerack eureka rock rick rack hayrack reek frock crock carack crack creek wrack drek trek trock ureic shriek
dare dere dire dore dree drew dure