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.
jemmy gemmy jammy jimmy gemma gemmae jimmie gem jam geum jamb
gemmy emmy jemmy shimmy mummy chummy commy whammy gammy tommy mammey dummy lemma seamy gummy rammy mammy jammy jimmy gemma immy hammy femme beamy mommy pommy rummy demy tammy tummy chammy shammy yummy