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.
coreign corn cornu corny corona cornua cornea careen carina coronae grin carn curn groin crony crane cairn crone green carny grain korun crown croon koruna cairny carnie crania grainy curran greeny carney cranny koruny carinae carrion greenie
reign foreign coreign rein arraign herein murein pereion serein deraign wherein rin
core coria corrie cowrie score scoria scoriae cor