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.
repled replead replied repealed repelled repolled reapplied replate replete rippled rappeled rappelled replot ripplet
pled coupled rippled hoppled repled suppled tippled toppled wheepled dappled nippled poppled peopled replied peeled poled applied lapelled polled rappeled replead repolled sepalled plied paled repelled cupolaed cupeled plod plead repealed puled piled sepaled spoiled cupelled spilled pealed appalled rappelled spooled speeled ripplet reapplied pulled pooled appealed spieled applet palled lapeled spiled pilled caplet couplet speiled spalled supplied uppiled spelled chaplet
replay replow reply reapply repeal repel repoll prepill preppily