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.
dere dearie dure doer dore dree dire deer dear dare drew deair deray deary derry terrae dry dor doughier dorr tore duro dour trey door tare tier durr tire draw dura tyre dory tear tree dray dowry tarre teary terai hydro terry dairy diary doura durra terra hydra
ere fere here quaere mere pere cere sere dere were where re er