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.
pallidly palatally politely palatal paludal
gelidly pallidly solidly validly gladly wildly saltily mildly guiltily veiledly coldly joltily fluidly faultily boldly baldly childly
pallid palliate paillette palladia palled pallet pallette spalled