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.
azons azans azines acinus asanas acinose acinous
azons zoons essoins bassoons azans bisons ozones rezones poisons scissions missions mizzens masons seizins sozins lessons diazins cozens dizens foisons weasons hazzans wizzens bosons chazzans bizones zones cions sessions scions fissions sons sonsy sones passions cessions reasons seasons mizens muezzins zins mesons zazens liaisons disowns gossoons dozens hazans wizens caissons chazans hysons chazzens