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.
greeted garreted grated garoted grouted created gritted curetted garroted garotted grottoed garrotted crated grided carted graded gradate curated guarded gridded courted quirted graduate quartette carded curded credit corded cordate cordite crowded crudded curtate gordita quartet carotid
greeted reeded retied retted ferreted fretted created curetted garreted laureated pirouetted treated turreted
greet great greed greedy agreed egret