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.
darkey darky darkie dark dorky drake turkey drecky dreggy dirk drek dork dreg troke daric drouk tarok dreck trike draggy drogue druggy tricky derrick druggie trickie
darkey turkey rake rekey birkie berake barky ryke rickey crickey quirky mirky narky peruke sarky darkie broke dorky larky darky jerky trike drake troke burke euroky forky corky brake crake braky crikey murky perky porky shrike
dairy dare dear dearie deary diary