Yeah, I just switched to cider, I've not found a wheatfree beer I like tbh. Though apparently, many beers have a low enough gluten content that they can be consumed by coeliacs etc, budweiser for instance has the same average gluten level as some "gluten free" beer. But it's still budweiser.
Oh, for whiskey, scotch is all safe for consumption as part of a gluten free diet- the proteins aren't present in the final product.
(the comment on barley is spot on but if you're on a gluten free diet rather than simply wheat free, barley also contains gluten.)
Oh, you can do wheat-free pizzas. But the bases you can buy in the shops are mince, you really need to make your own and it's hard work. But worth it!