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.
crowd crowdy crowdie corody cred card curd corrode cord crud corrody cured crude caird credo curdy cored grody cared creed cried cruddy cardia croute caried carrot cardio curred cowrote curried cowrite carried carroty cardiae corrade corrida cart crit curt grad grid grot
crowd rod viroid joyrode corody corrode corrody grody prod parody sarod sciuroid droid toroid trode shrewd erode byroad brood period aroid rowdy rood rode road crowdy neuroid broad proud sarode zeroed hydroid trod choroid shroud
crow cowrie cowry craw crew grow