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.
ripplet rippled replete rappeled rappelled reapplied repled replot replate replead replied repealed repelled repolled
applet ripplet toppled palet pleat hoppled capelet caplet couplet poppled nippled replete rippled suppled dappled deplete tippled chaplet
ripple ripply ripely cripple gripple drippily triple triply