One of the first things i did when i started my LCHF diet was to sort out how to do low carb baking. Initially I didn't use any sweetening, but I discovered that erythritol and stevia are quite safe for diabetics and now I tend to use blends of the two, and these don't cause me any issues with glucose levels. Xylitol is supposed to be great for baking, but it can be lethal to dogs, so I won't have it in my house.
Seven years ago there weren't so many online resources available that offered low carb baking recipes, so I tended to adapt my existing baking to suit, but now there are dozens of sites that Google can direct you to. But anyway, here's an old list I compiled of some of my variations on themes for muffins etc:
https://www.diabetes.co.uk/forum/threads/low-carb-recipes.4871/page-48#post-987609
I've since added walnut and pecan meal to my list of alternative "flours".