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.
slays slaws sleazy selahs scillas sols sals sels sales soils sylis sloes sills seels silos seals slues sauls slews sails sells slows sulus soles solos souls salsa solus soleus sleaze solace selles sleazo sluicy sallies sallows sillies sullies zillahs sailless soilless soulless
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