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.
myrrh murr merry murra marry murre murry morro murrey morrow marrow mar mir mor marrowy more mara mare mair miry moor miri mora maar mure mire mere mura
myrrh hurrah jarrah sirrah yirr