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.
glees glues gleys gales gules galeas guiles coulees gulleys galleys gals guls gallies goalies callees gullies goalless galleass glows glass kales gulls gloss glaze clues glace gloze keels coles clews glias goals galls galas gaols caules coleus colies glassy gallus kayles glossy glossa calesa galahs cullies killies gallows kellies collies glassie gallous glossae coolies keyless queleas coalesce coalless colessee galliass keelless cols
allees glees pollees callees flees bailees mallees lees gelees coulees melees doolees les bales vales boulles colies boughless joyless biles fellies gallies glues bullies viewless aloes feels mailless values joles calesa lies eels hales bellies holloes miles coalless bless folles flews pules gillies piles oles rilles queleas molies rallies fillies deles boles milles seels tallies awless lues dales heelless voles toeless gleys mollies leas polies ghillies poles moles riles dewless sailless tieless soles toles dailies toyless mulleys tules wales doylies goalies mealies wheelies wellies wheels dollies wholes doolies willies woollies challies tailless chilies slues chyles shoeless teles dalles voiles soulless rouilles bailies slews lollies boules doilies coleus gullies alleys vowless hollies gales wallies belles follies plies reales lawless less felloes joules keels relies coolies hulloes selles sloes fleas lilies muhlies leis mules bowless soleus coles wyles plews clews dellies flies malleus kellies halloes keyless kayles guiles jawless ghoulies toiles ales flues jollies killies helloes soilless teels baileys haoles clues feeless files valleys cullies allies failles bialies ballies blues heels holes leys caules mealless belies hoyles mooleys hueless pleas gules kales holies peels ileus sallies pulleys dillies filles doles sales poleis haloes nellies roles volleys billies goalless keelless jellies sullies oleos galeas peles collies dallies fleys gulleys foleys rales galleys mailes floes hilloes wayless rayless whales tellies tiles muleys toolless kneels tuilles rules tulles walies tailles males sillies pileus wheelless whiles pales wiles doyleys woolies chalehs chiles tales chillies reels shales yules
glee gale galea galeae gley glue gluey aglee agley ogle