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.
sordor sardar sirdar sorter sartor sartorii
ardor sordor weirder toreador sartor corder sirdar sardar parador murder mirador larder guarder corridor girder reorder hoarder ardour herder harder border boarder birder order carder warder yarder
sord sard soared sored sort sorta sortie sourdough soured surd