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.
vigors vigours vigorous vigoroso vicars figures voguers vagarious vicarious fakirs faqirs faquirs fiacres foggers vagaries vaqueros
vigors rigors eagres loggers aggers agoras kors koras agars joggers laggers gorsy gaggers riggers huggers buggers muggers vigours foggers naggers eggars ogres baggers rigours cigars saggers scours sugars decors doggers tuggers chiggers mucors jagras aggros gorse luggers cors augurs gars goers corse cougars liquors jiggers keggers cores jaggers cooers muggars muggurs hoggers niggers eggers pakoras beggars gores coirs ruggers saggars scores seggars daggers diggers taggers waggers chuggers