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.
wheys whys whews wheezy wees woes ways waes whose whoso whizzy wheeze was wis wos waws whiz wise wiss woos wows wuss ywis
wheys hes shoes shews sheas chews chays beys queys keys cooeys joeys hues hoys hoes hooeys looeys hies hehs hays haes ghees leys hyps whews hews deys whys chess shays shes shies wyches