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.
periodate predate peridot periodid prided prated partite proteid pirated prodded parroted proteide parodied parted ported prutot parotid partita preedit parotoid preaudit prettied pirouetted
periodate airdate cordate chordate