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.
rewin rawin rewan rewon rowan rowen
rewin win twine twain dewan swine swain sewan rewon rewan rawin lawine lauwine gwine winy wino wine whin wain deewan dwine twin twiny