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.
reorder rewriter
border order reorder corder porter trader hardier derider prouder harder parader guarder grader tireder shorter weirder cruder broider hoarder forrader broodier brooder horrider murder sordor lardier herder rider arider torrider larder sorter joyrider broader boarder ruder prodder wordier tardier warder curdier girder carder crowder grodier lowrider nerdier birder yarder