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.
reapplied replied rappeled repled rappelled replead rippled repealed repelled repolled replate replete ripplet replot
applied reapplied supplied plied hoppled nippled poppled rappeled replied rippled suppled dappled tippled toppled uppiled pled
reapply rappel grapple preapply