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