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.
pardahs purdahs pards purdas parodos parades parados parts prods parodies paradise prudes perdus prides parties perdues parrots periods parietes parities ports priedieus prats prates peritus pirates produce proteas proteus pyrites
purdahs pardahs hardass giardias cardias corridas queridas purdas
pardah pard parade pardee pardi pardie pardy pared parodoi parody purda purdah