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.
gaols gals gales goals galls galas gallus galahs galeas gallous guls galleys goalies gallies cols gallows goalless galleass galliass calos kolas coles cauls kails gloss gulls koels glees glias gleys coils kolos cowls glows kales glass cools glues coals gules calls colas kohls guiles glassy callas coulis quails caulis kayles coleus glossy coalas koalas quolls callus caules colies calesa collies coulees glassie coolies gulleys callose gullies callees callous colossi coalesce coalless colessee coulisse
gaols als hales awls boils boles koalas lolls hauls voles knolls baals foals falls bialis balls violas bowls oils phials calos coalas howls rales jowls veals owls reals pals coils nalas molls kails fools joles pawls solos galas kolos bals bolos coles fowls galls balas miauls holes halos moolas walls pools soils rials wails talus duals zeals wawls whales tales wholes cholas noils shales shawls sheols shools tails yawls polls tolus dolls cools kohls pales males toils toles hails mauls sals sails molas roles deals diols sauls balsa quolls poles dales solus pols vales bales aals jails oles reales palls coals nails moles goals valse palsy fails soles cols kolas vails bialys colas haoles halls bawls bolas rails vials foils hols bails ails heals kales lalls bolls cowls mools bolus gals viols ghouls ales alas alls nolos fouls false also meals cauls aiolis moils koels pails mails teals tolas calls malls sales rolls roils doles dals dials salsa gales quails peals dahls sols polos jouals tolls mols weals wales polys seals reoils tools talls dols souls wauls talas polis wheals wools noels cholos shauls sheals shoals taels sials yowls
gaol gal gaily gala galah gale galea galeae gall galley gally gayly goal goalie golly egal