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.
mors morse moors mores moras morros moires morris morays morose morass mirs mars morassy morrows marse murrs mures maars mires maras mares meres mairs muras mbiras murras murres myrrhs marries marrows morceau murreys murries mercy mirza
boors cors kors moors mors ors doors dors tors
mor mora morae moray more morro morrow