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.
please pleas piles plies plews pales pulse peals plays poles pules peles pilaus paillasse palliasse polies pilaws pilose poleis palais pileus plisse pollees pulleys pelisse paellas pileous pols pals plus puls polos pawls palsy pilis polys polls pilus place peels pills pulis pulls pools palls plaza ploys pails plows polis police palace polios pilous plaice poilus palazzi palazzo pillows
lease please release chelas weals meals deals queleas sleaze galleass rouleaus malaise galeas reals peals heals pleas palliasse coalesce leas clause wheals teals zeals seals valse blase liaise false lase fleas paillasse veals else sheals
plea pilaw pule palea paleae peal pele pilau pale pilea pile pilei play plew plie pole pula splay