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.
gallies goalies gullies galleys galls gales goalless galliass galleass galeas gallus gals kellies gulleys killies gallous collies gallows cullies callees gleys gulls glias gaols gules coalless calls goals glues glees kales galas cullis callus galahs callas caulis caules calesa guiles kayles colies callose callous coolies glassie guls coalesce keelless quillais gloze cauls glaze clues clews quillaias glace kills calos kails coals coles culls gloss glows glass coalas quills coulis quails glassy koalas coleus glossy quells quolls coulees cullays glossae keyless
ballies challies billies dallies sallies collies fellies tellies dollies fillies gullies willies bellies nellies hollies sullies mollies killies gillies allies chillies wallies cullies dillies wellies dellies bullies rallies woollies kellies ghillies gallies lollies tallies jellies jollies sillies follies lies dalles challis volleys halloes goalies lieus tailless doilies muhlies soilless relies tulles wheelies belies colies belles rouilles callees plies molies malleus bailies galleys coalless dailies helloes toolless failles allees sailless mealies goalless polies mulleys heelless doylies chilies holies alleys milles ghoulies pulleys hulloes follis tuilles bialies coolies hilloes mallees soulless tallis felloes mealless cullis tailles rilles keelless valleys lilies milieus mailless walies flies pollees doolies gulleys filles quillais folles holloes selles boulles woolies wheelless chillis les lis