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.
detained deadened deodand detente detonate tautened tetanoid detent titanate titanite
reattained stained detained retained attained mutined staned tineid patined patinaed mutinied dinned tined dined deigned deaned dawned retinued tanned tinned