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.
aroid arid aired arrowwood arietta ariette art airt arty
viroid toroid hydroid droid choroid sciuroid neuroid aroid rid rod proud varied aeried carried byroad road berried dried curried nereid juried corody myriad period ferried querida caried quarried grid queried rode hydrid irid choreoid whirried wearied trod triad joyrode roti droit oroide corrode gride braid ride pride married herried bourride hurried corrody prod harried grody sarode druid bride jerrid broad sarod arid raid crowd fried hayride hybrid tarried jerid parried pried wried boride parody joyride zeroed corrida lurid erode rood horrid sciurid murid cried brood hydride deride serried virid buried torrid tried trode wherried worried chorioid shroud