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.
dorado dread trad drat torot dared dorty tread dured derat dreed droid druid triad dried trade torta tirade toroid hydrid deride derate torrid deaired diorite hydrate hydride hydroid deaerate
dorado rad read rato raid fraud irade corrade redo grad orad maraud reread road parade dread teredo trad tread uredo charade oread radio ordo credo braid bread broad byroad farad fordo brad foredo cardio hairdo grade myriad roadeo tardo tirade trade triad weirdo tiaraed
dor dour adore doer door dore dorr dory deray dourah doura dowry draw dray dura tora torah odor