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.
lewdly lately loudly luteal
lewdly headily muddily needily badly bawdily medley bodily fiddly beadily sadly dawdle diddley ruddily dowdily ridley tidily redly weedily puddly shadily oddly duly giddily seedily moodily muddly loudly goodly madly gaudily cuddly godly rudely deadly idly rowdily diddly reedily tiddly readily waddly piddly widely nudely shoddily
lewd led lead leady leud lied bled fled gled glede pled sled