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.
carol caroli carl cariole carle carriole carrel creole corolla carrell curl criollo creel crawl cruel growl craal curly coral corral crawly curial curlew curule growly cruelly quarrel
carol parol aril roll role growl marly gnarly aryl nerol neroli broil parole pearl prole pyrola pyrrole dearly drool troll parle earl nearly marl early farle harl jarl carl carle farl caroli gnarl roil payroll pearly prowl pyrrol reroll droll triol yearly
car care carr carry crow karoo acari scar scare scarey scarry scary