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.
rood rod rode roto root road rowdy rooty rodeo roadeo roadie rot rad rid red riot redo reed redd raid rude read roti rota rato ride rued rote rout rede rudd reedy wried radii redia readd rotte ready ruddy radio route wrote
food hood good mood pood rood wood od