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.
palais pals paellas palazzi peals polis pawls pulis palsy plays pilis palls pales pails plies palliasse paillasse pilaus plisse polies pilaws palace plaice poleis polios pelisse palazzo pols plus puls plows ploys pules plews pleas polos poles pools peels polys plaza piles peles place pulse pulls polls pills pilus policy police poilus pileus pilose pilous please pileous pillows pollees pulleys
quillais palais lis las caulis mails coolies halloas fellies bialis hails jollies lase hollas koalas allays mullahs bellies follies gallies hylas mealies molies lays rails balas lilies nails pilaws quails claws moolas galas fails hilloas gullies laws polis holloas jails fellas blahs flies bailies bolas bullies leas belays fillies olios blaws realise wails relies plies tellies doolies delays sillies wallahs doilies wallies willies wellies paellas woollies challahs challies chelas dellies chilis chillis chollas hulloas glias cullis mollies nellies doylies tails sails cullays vails colies polies tallies dahlias coalas plays ghillies flays kellies slays scillas lass villas dalasi sylis quillaias fellahs nullahs glass bails killies galeas clays coulis class nalas flaws pilis bylaws holies liaise ballies molas alias moolahs queleas boylas bliss kolas rallies valise lollies blase hulas goalies belies pulis billies aiolis relays aaliis bialies pleas colas ghoulies alas mullas kails ails galahs leis collies muhlies gillies jellies zillahs callas malaise dulias talas sallies helios hollies allies polios tallis fleas dailies pails violas follis hallahs sullies selahs lies cullies dallies folios mollahs wheelies pilaus ceilis poleis tolas doulas delis slaws wallas dollies waylays walies woolies ollas chalahs challas challis chilies dillies chillies cholas sheilas
pal pally spall papally opal play pilaw pilau pial peal pawl paly pallia paella pall paleae palea pale pail pula papal spale splay