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.
cooer cor gooier goer core coir cory cowry coria cowrie corrie gor car cry cru cur kor care carr craw crew crow cure curr gore gory keir kier kora kore
wooer cooer boor hoer goer gooier moor moory poor poori zooier doer door shoer
cooee cooey coo gooey coco cocoa coke coocoo cook cookey cookie cooky chook