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.
paradise parades parados pards parodies pardahs parodos parties parietes parities parts prats prods priedieus prudes prides prates perdus pirates produce pyrites peritus periods perdues parrots pretties protease proteose purities pyritous yperites ports purdas
paradise faradise radios radius readies roadies faradize treatise
parade pard pardah pardee pardi pardie pardy pared parodoi parody