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.
worry whirry wherry wary wiry wore wooer whirr wirra whore weary war ware waur weer wire whir were weir wear wair
lorry worry sorry carry curry gurry burry cory array firry marry orra furry perry berry murry herry derry dory tarry torr wherry foray ferry loury cherry morro merry quarry hurry knarry lory hoary gharry kerry cowry gory jerry serry hurray harry moory charry hooray murrey parry moray surrey dorr dowry terry tory whirry sherry