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.
retinue retine retinae retina retune retene ratine retain routine rutin reattain redone ratan redan redon redden ridden rhyton rattan ratany ratton radian redeny ratten ratoon rotten ratteen rattoon written
detinue retinue tine tinea betaine matinee mutine patinae patine poutine ratine retinae retine routine tin