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.
redeny redden redan redon ridden retene redone ratteen radon retain rotten ratten ratany radian retine retune retina retinae retinue written reattain
deny redeny den bidden duodena deaden sodden ridden odeon redden louden deni leaden dean dene neoteny wooden shodden maiden teeny fadein sadden hodden widen dudeen hoiden sudden hidden hoyden madden chidden midden loden laden kidney coden codein hyoidean
rede red redia redd ready readd read rued freed brede cred creed greedy preed dreed uredia rediae reed redo reedy rete ride rode rodeo rude bred breed ired credo greed greet reread treed uredo