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.
doubled doublet dabbled dibbled tabled tubulate tablet tabloid
doubled bled bulled blued bleed kibbled labeled mobled rabbled nobbled sublet dibbled babbled dabbled doublet wabbled abled bobbled rubbled fabled bubbled hobbled cabled cobbled gabbled gabled gobbled quibbled libeled nibbled pebbled baled tabled wobbled