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.
corded corroded corraded curded carded cordate cordite crowded courted crudded carted credit graded grided crated curated guarded gridded crawdad created cardioid curetted corotate crawdaddy grated garoted gordita curtate carotid crudity greeted gradate gritted grouted quirted garotted garreted garroted graduate grottoed
barded hoarded farded herded carded warded girded horded worded lorded yarded birded curded boarded bearded forded weirded larded corded guarded chorded prodded readded paraded courted readied redded bradded carted raided girted quirted prided fordid braided radded graded sordid corraded warted crudded shorted hearted shrouded crowded marauded charted tarted traded darted corroded ridded birdied farted eroded reeded derided marted dreaded gridded reded airted sorted treaded ported breaded brooded rodded shredded grided parodied parted
cord corrida cocreate curd cruddy credo cred cowrote cowrite court corrody corrode corrade card corody cored cardio cardiae cardia crud crude curdy scored