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.
dory dowry dry dor door dour dorr dore tory doer dray derry doura diary deary deray dairy dourah try tor deer tour dire durr tray dear doughier dura tora drew troy tori torr dare duro tore trey dure dree dere toro draw torii torah terry deair teary tarry hydro hydra durra
cory gory lory moory dory tory or