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.
ruinate ruined runt reunite runty riant rente rained reined runout rainout reigned rant rent rind rindy round rennet
quinate binate ruinate donate sinuate connate manatee enate finite hyphenate phenate phonate innate pinnate cuneate kainite neonate lineate lunate minute pennate pinite pointe quinnat pinata senate quinte zonate lanate tannate