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.
baldly boldly bloodily belittle
baldly mildly coldly childly boldly wildly bloodily aldol solidly fluidly palatally lewdly loudly fluidally cloudily validly gladly veiledly pallidly gelidly dillydally colloidally
bald baldy bailed bailout balata baled ballad ballade balled ballet ballot ballute bawled blade bled bold