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.
peopled poppled poplitei populate hypoploid
peopled pled coupled cupeled cupolaed lapeled nippled puled rappeled hoppled replied rippled spiled spooled supplied tippled uppiled replead paled applied repled polled poled plied plead piled poppled reapplied pooled repolled sepaled spoiled suppled dappled toppled wheepled