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.
mir mire miri miry mair moire moira mbira mor moirai mar mare murr mura maar mere more mora mure mara moor murry moray murre murra moory morro morae merry marry maria myrrh marrow morrow murrey