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.
sunnah sunna sunn sauna senna sunny sienna sun sinh snaw scena sonny zinnia sen sin son syn
sunnah nah donna anna sunna biennia henna canna goanna manna mynah penna nona pennae pennia pinna pinnae senna sienna zinnia duenna