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.
favours favors feverous vouvrays fevers fivers feoffers feoffors foofaraws fifers vivers
favours savours devours dyvours fours bevors favors haviors haviours paviors paviours saviors saviours savors devoirs