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.
morceau morse mores moras moires morose morays morass morassy mors moors marse muras meres mares mirza mires mercy mures maras mbiras morris morros murras murres marries morrows murreys murries