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.
gallous gallus gallows callous galls callus gals gallies galleys callose gaols glows galas glues galleass goalless gulls galliass gloss gales calls goals calos galahs glossy callas galeas glossa gulleys glossae goalies callees gullies guls coalless kales cloys clues close glees glass glias gules culls kills cauls kails kolos coals gleys gloze kilos quills quails koalas caules glassy caulis clause calesa coleus guiles quells quolls coalas coulis cullis kayles colossi coulees cullays cullies glassie kellies killies collies
bullous callous villous gallous willows pileous delouse malleus pilous gallows mellows louis lilos halloas fillos callose hallows bellows alloys sallows shallows hellos allows lousy follows louse halloos hilloes holloas holloos hollows hulloes hullos jealousy callus tallows helloes billows zealous mallows duellos gallus cellos holloes niellos hilloas lulus hollos bilious folious phallus villose blousy chylous pillows wallows felloes phyllos halloes villus hillos blouse hulloas hulloos jealous jellos hallos fallows fellows yellows