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.
dree dire dare dere dore drew tree dure deer hydrae durrie dearie dor dry hydriae dear dray draw true doer duro tire durr tare dura door dory tyre tore dour trey dorr durra diary derry deray deary tarre deair hydra doura dairy dowry hydro
ree bourree bree free hiree gree laree pree puree saree siree sirree soiree dree tree re