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.
weirdie weird weirdo weirdy wearied wired whirried wherried waired whereto whereat worried whirred ward wert word wared wordy warred whored
birdie weirdie burdie irade cardiae pardie perdie tirade