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.
loudens lodens loudness ladens luteins leadens lowdowns latens leadenness lattens lateens lateness lewdness liteness luteinize ladinos latency latinas latinos lattins
loudens dens udons dudeens suddens soddens reddens middens maddens deans denes dense boudins fadeins voudons hoidens hoddens hoydens codeins codens ladens leadens lodens maidens odeons saddens soudans deadens tautens widens