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.
pulis puls pules polis pulse pulls pilis plies poleis polies polios palais plisse pals pelisse plus pols pulleys piles peels palsy polls pawls plays palls polos poles pails plews ploys plows pilus pleas polys pills peles pales pools peals palliasse please pilaus plaice policy poilus pilaws police pilose pilous pileus paellas palazzi pileous pillows pollees paillasse
coulis caulis pulis lis caules cauls pules pilis gallies jouals bellies miauls lulls jellies hollies bialis hulls belies poleis sallies guls ghoulies valise follies bialies boules killies helios aaliis flies mauls fouls collies ballies allies nellies billies polios fulls chillis shuls chilis challis doylies woollies willies wellies doilies dulls dellies ulus tellies dahlias tallies wallies duels fellies gullies doolies olios lilies rules mollies dallies pulls mules sulus goalies sillies sulci realise pulse puls cullis gulls culls polies leis muhlies coolies palais nulls polis colies cullies joules bailies glias fillies ceilis follis lies hauls gillies hulas mulls buhls louies ghillies bullies aiolis louis folios holies quillais lulus kellies gules lollies dailies bliss dollies plies alias relies bulls fuels duals mealies sullies jollies sauls souls rallies molies walies ghouls wheelies chillies shauls chilies challies doulas woolies wauls dulse dillies dulias delis tules tallis sylis yules
puli pul pili plie polio pula pule pull pulley pupil