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.
dowry dory dry dor dour dorr dore dray door doer tory derry diary deray doura deary dairy dourah try tor doughier dree troy dare tori tour torr tore tora drew durr deer dire trey toro draw dere dura dure dear duro tray trow
dowry cowry wry wiry tory sorry furrowy dory moray arrowy awry bewray foray hoary gory lorry lory loury marrowy hooray moory wary cory worry