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.
din dine dino deign diene dinghy don tin den dun dan down tine deny tain deni dean dene dune dona dyne done dawn tiny danio donee donna donne downy tinea tinny donnee duenna