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.
reissuing rising raising reusing reseeing rasing ricing rosing roosing rousing razeeing racing razing razzing
issuing reissuing tissuing suing passing messing mossing mussing pissing dossing cessing sussing sassing dissing tossing chasseing lassoing kissing guessing gassing bussing moussing hissing fussing fessing massing bossing biassing missing jessing cussing wissing yessing sing sung