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.
shimmies shammies shammes shims chammies shmoes shames chimes siamese shammos shammas shams chimbs shawms chymes shamas shamos shamus chamisa chamise chamiso chemise shamois shamoys shmooze
gimmies jemmies immies cammies tammies tummies shimmies jimmies pommies shammies commies chammies jammies whammies mommies mammies yummies tommies dummies rummies mummies zombies mamies lambies shammes ramies femmes amies demies mammeys gimmes momes memes homies roomies mimes mammees mis