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.
murra mura murr murry murre murrey mora mure mara maria morae moira myrrh moray merry mbira morro marry marrow morrow moirai marrowy mir mar mor mere mire miri miry moor maar mair more mare
murra durra surra durr curr laura burry burro burr bura aura sirra mura hurray murry purr hurrah dourah terra urea churr gurry furry aurae curry curia array sierra sirrah kerria laurae murr murre wirra terrae jura surah hurry sura doura dura orra jarrah churro