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.
devoir devour defier dyvour deifier defer diver deafer deffer defray differ doffer duffer daffier
devoir vier dyvour ivory savour savor bevor bouvier favor favour havior heavier vair jivier caviar leavier levier livier pavior savior savory savvier devour wavier