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.
quoll quill quell cull quillai gull quillaia quail golly colly gully cully quale cullay qualia collie quelea coolly gulley gul col call caul goal kolo kohl coil kill cool cowl cola cole coly kola koel coal gall gaol
quoll holla jolly hullo colly holly hollo hull mulla olla knolly pull molly lull sully loll dolly quill dully gully tulle cull woolly golly boll boulle mull gull bull bulla coolly folly foully bully knoll poll null full roll moll doll lolly dull fully toll quell wholly cully cholla