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.
perineal peroneal perennial preanal pronely perennially prunella prunelle prunello
perineal carinal corneal morainal peroneal trinal urinal
perinea pereion pernio prion purin purine