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.
druid dried droid deride hydrid hydroid hydride dured droit dared dreed dread trued dorado toroid torrid deaired diorite dart dirt drat
druid rid queried rude murid nereid fried arid ride horrid crude irid varied raid cried quarried viroid ferried maraud grid serried hayride proud choroid hydride whirried wearied hybrid tried torrid tarried sciurid jerrid parried berried rued pride carried wried rudd dried corrida fraud jerid aeried virid fruit crud bruit caried gride herried curried aroid juried droid married myriad querida prude lurid harried hurried braid boride joyride pried deride buried period hydrid bride sciuroid toroid bourride triad trued neuroid wherried worried hydroid shroud