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.
parricide priced peracid precede preside parasite hyperacid parsed priest prized prised praised proceed pierced prissed prostie persuade presidia presidio periostea praesidia prest prosciutti prosciutto
viricide parricide virucide triacid