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.
draw drew dray dura deray hydra durra doura hydrae dourah hydria dor dry hydriae door dorr tora duro dore tray dure durr dere dour dree dear doer trow deer dory dire dare hydro terai deary dowry diary derry dairy torah deair terra