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.
poolside policed palsied palisade pulicide pulsed placid pleased pollist pulsate poloist pellucid pilosity playsuit palest placed placet
hillside poolside felsite palsied wellsite
pools pols poles polis polls polos polys spools