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.
puls pulis pulse pulls pules pals plus pols pulleys plews peles peels pails pleas poles pilis peals pales polys polis polls pawls plies palsy plows palls polos pools pills plays pilus ploys piles polios pilaus pileus poilus plisse pilose please palais pilaws pilous poleis polies paellas pelisse pileous pillows pollees paillasse palliasse place plaza
fouls ghouls hauls cauls guls mauls miauls puls sauls souls wauls shauls shuls
pul pula pule puli pull pulley