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.
chemise chamise chemos chamisa chamiso chamois chums chams chammies chimes chymes chimbs chymous shamois shammies shimmies shams shims shamas shames shamos shamus shawms shmoes shammas shammes shammos shamoys siamese
demise remise chemise mise bemuse hyphemias camise remiss semis demies chamise mis ems