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.
rods roods roads rodes rodeos reds rids rots rads roadies roadeos rowdies riots redds redos redes rides reads reeds rotis rotos roots rudds raids ratos routs rotes rotas radius routes redoes readds radios rottes redias readies riotous rats rets ruts rates rites writs
bods mods woods sods rods poods pods ods nods moods quods feods goods gods cods hoods hods foods roods tods yods