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.
outtrade outrate outread outride outrode outtrot outwrite outwrote outroot outwrit odored
trade outtrade trad tetrode detrude stride tirade tread triad trode laterad nitrate nitride outrode retread citrate outrate strode outread tetrad outride titrate
ottar otter outer outre outrow outthrew outthrow