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.
roadie roadeo rode road rodeo radii radio rediae rad rod rood rite rota rude roti read rote raid rede rate ride write readd rowdy rotte retie ready redia raita route wried wrote rat red ret rid rot
roadie die howdie jade caddie cade cadi cuddie hoodie gaddi kiddie goodie made nudie hade sadi died dite waddie wadi woodie laddie adieu radii padi bade baddie aide gadi kadi qadi fade lade mediae radio roadeo foodie rediae sade didie diet duddie wade widdie shade