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.
praedial predial peridial parietal predella prettily portal prattle pretell proudly partly pertly portly protyl
praedial redial predial uredial radial radiale reedily biradial cordial credal creedal greedily peridial
parade pared pored prate preed pried priedieu