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.
doodad dated doted duded tedded dotted doited doated deeded dawted dauted dadoed tooted dittoed hydatid toadied tattooed
hodad doodad dad toddy dado dead duad toad toady dada today aoudad boded hooded iodid caudad mediad audad coded wooded
doodoo doody doodad diode dodo dowdy voodooed hooded hoodooed wooded