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.
quintar qintar quainter qindar quandary kantar counter cointer country gaunter gauntry cointreau canter cantor contra gantry kinder contour
quintar qintar winter tinter sinter centaur reinter pointer painter minter linter quainter kantar qindar cointer jointer intro inter hinter fainter centare sanitary tantara unitary wintry
quint quinta quinte quaint quant quanta quinate quinnat quinoid quoined equinity squinnied squint squinty