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.
koumys koumyss kumys koumis koumiss kombus kumiss gums goombays gaums combs comes kames comas comous gombos comose commas gummas gumbos gamays coombs combos combes caeomas commies coombes cumbias gummose gummous goombahs
koumys kumys gamays gaums gums koumis koumyss loumas geums mums mammeys neumes numbs pumas sumos doumas dumas chums lums humus hums mumms heaumes fumes emmys bums mays limeys homeys mameys lumas mumus neums pneumas rums sums doums dumbs shamoys