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.
wold woald would wooled wild weld woolled wield weald wiled waled walled wawled willed wieldy wailed wauled whiled welled whaled waylaid wheeled willied welladay welt wilt
bold fold hold cold gold mold old sold told wold