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.
retinued retained retuned reattained retinite retinoid retint ratooned reddened rattened redonned redenied rattooned rotund redound rotunda rident rodent
retinued deigned dined dinned tined tineid tinned attained mutined mutinied patinaed patined reattained retained stained detained
retina retinae retine retinue ratine retain retene retune rutin cretin