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.
sirrah sirra sierra surra surah sir sirree sora sura sire sera serry serai sorry sieur cirri siree soiree sorrow surrey ser sri
jarrah sirrah hurrah rah sierra wirra pariah terrae orra durra kerria surra myrrh gerah sirra murra array surah hurray dourah horah terra hoorah torah pharaoh shariah