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.
scillas sills zillahs sillies sails soils sailless ceils zills soilless silos slaws sells slays cells selahs ceilis selles cellos sullies sallows sallies sols sels sals soulless salsa sulci sauls souls sloes sylis seels soles slews solos seals sales sulus solus slues slows cilice sleaze sleazo sleazy solace soleus
villas scillas ills hillos hollas mollahs hills mills milles quills kills callas holloas fellahs gills nullahs bills failles paellas pilaws rilles rouilles sills zills tailles tuilles wallas challahs chillis chollas shills mullas maills hulloas ollas fills halloas filles vills villus quillais cullays jills hilloas allays fillos violas pilaus nills mullahs pills rills hallahs fellas zillahs dills tills wallahs wills challas chills sheilas yills las