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.
reredos rereads reroutes rewrites
redos credos teredos uredos reredos reds redds parados marrieds breads ordos creeds redes reads hairdos breeds parodos rereads weirdos redoes weirdoes reeds dorados haeredes jerreeds treads fordoes foredoes oreads bredes dreads greeds creds jereeds heredes nereids shreds