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.
wheal weal wheel whale weel waly wall wawl well wale waul wheelie wail whole walla while wally welly wallah wallie wallow waylay wellie wholly wile will wily wool
heal sheal wheal shell zeal phial halo shawl shaly shale chela real shiel haul hall leal helo hell heil heel hale mealy hyphal deal weal meal peal seal zoeal vealy wheel hail whale chiel shall shaul teal veal feal sheol shoal