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.
gals galls gales gaols goals galas galahs galeas gallus guls gallous goalies gallows gallies galleys galleass goalless glias gleys glees kales gules cauls calos gulls glues galliass glass glows kails coals gloss calls caules koalas kayles coalas callus glassy calesa glossy quails caulis callas guiles glassie callose callous gullies callees gulleys coalless coalesce cols cloys glazy coles coils kolos kills cowls kohls kilos culls cools close glace class clues claws keels clays clews koels glaze kolas gloze colas
aals heals shoals wheals teals dials dals seals rials peals pals meals goals gals coals jouals vials als veals phials foals bals baals reals sals zeals deals duals weals sheals sials
gal gala galah gale galea galeae gall galley gally