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.
pommy pom pommee pommie poem pome pomo pam pima puma
commy mommy pommy tommy shimmy chummy womby jimmy tummy comma jammy tammy boomy doomy immy roomy gammy loamy dummy rammy gemmy homey shammy chammy whammy rummy foamy gummy hammy jemmy mummy mammy homy momma mammey emmy yummy