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.
pedalo pedal petal peddle patly pettle piddly puddly patella pettily patellae
pedalo dal tidal daedal redial dahl medial medal caudal cattalo catalo geoidal hadal ideal modulo feudal dual dial deal dale modal nidal pedal audial nodal radial zooidal dedal hyoidal
ped peat peaty peed pied aped oped sped