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.
cued cud cute coed cuddy cutie coude cooed cutey queued cuddie cooeed cad cut cod couteau cade quod cate gaud gaed guid gude cadi kudu quad kudo caid coda quid code cote caddy cutty gaudy guide quate quiet quite quote
feued hued cued queued meoued miaoued rued sued ed