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.
emmy em embay eme emu emeu embow
emmy hammy shimmy chummy whammy tommy dummy rammy immy gemmy jammy jemmy jimmy commy gammy gummy mammy mommy mummy pommy rummy tammy tummy chammy shammy yummy mm my