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.
plaice place police palace plies please polies palais plisse policy pelisse palazzi pails pleas polis peles pules pilis plays poles plews plaza pulse pales pulis piles paillasse palliasse pilaws poleis pilaus pilose polios pileus paellas palazzo pileous pollees pulleys
plaice malice chalice sluice slice cilice relace police place palace malaise lace glace bullace lice liaise lacey solace shoelace
pail pilau pilaw pili play plea plie polio pula puli lapilli papilla papillae spail splay