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.
cowry cory cry cor cowrie crow gory coir core cooer carry curry coria corrie gor cru car kor cur care carr craw crew cure curr goer gore gray grey grow kora kore
dowry cowry wry wiry tory sorry furrowy dory moray arrowy awry bewray foray hoary gory lorry lory loury marrowy hooray moory wary cory worry