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.
plays polys pleas ploys please pilaus pilaws palais pols paellas pals puls plus pulleys plaza palsy plows peles pilis plies peals peels pilus pails polos pawls pules place pales pools polis polls piles pulse poles pulls palls pills plews pulis paillasse palliasse polios plaice palace plisse pilose pileus policy poilus poleis pilous polies palazzi palazzo pelisse pileous pillows pollees
allays relays plays flays lays cullays belays waylays slays clays delays las blaws baileys laws moolahs hylas galleys flaws galahs lacy volleys galeas kolas fallacy leys alloys ollas queleas coalas pleas mollahs hulloas alleys callas glazy class lyse chollas chelas challahs mooleys wallahs tellys dulias doulas lazy dahlias polys colas selahs holloas halloas nalas blase koalas lase muleys alias mullas fleys balas hollas pulleys fellas violas fleas mulleys lass alas ploys moolas nullahs leas blahs mullahs hallahs quillais cloys hulas valleys boylas hilloas glass claws pilaws glias gleys palais bolas villas bylaws galas molas fellahs gulleys paellas foleys dalasi bialys pilaus scillas slaws zillahs dialyse doyleys talas tolas wallas chalahs challas cholas sheilas
play ply paly pilau pilaw pily plea ploy poly pula splay