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.
nitride nitrid nitrite nitrate notoriety natured nattered neutered
outride nitride stride tetrode detrude trode satyrid putrid outtrade outrode nitrite nitrid trite attrite tried triad trade hydride deride strode retried deuteride triode chytrid
niter niterie nitery nitre nitro nittier nutria