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.
kayos kayoes kyes cayuse
mayos kayos yays yous yows ayes bayous boyos joyous kayoes mayas poyous rayas toyos