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.
coombes coombs combes comes combs combos commies goombays comas goombahs cames gambes comose kombus comous gombos commas cumbias cammies caeomas cams cwms games gambs camas kames camos gumbos koumys gambas cameos camass koumis camisa camise gambias koumiss koumyss
bombes combes coombes tomes domes zombies romeos comes gnomes combs mamboes combos kombus jambes gambes coombs homies imbues homeys homes bombs biomes bimboes gombos lambies momes nomes pomes roomies zombis tombs wombs oms
coomb coombe comb combe combo goombah goombay