It may be a slightly longer process, like 2 weeks, but veg tanning is a great option if you want to avoid the smokey smell. If you have black wall nuts in your area then get a couple gallon bags full of the big green or black husks and throw them in a pot. Fill it with water till they’re covered and boil it for a good hour or so. Then dump the black liquid in a bucket then add more water and boil again. Repeat this 3 times. Once you have a decent amount of black liquid, throw your fleshed hide into it and give it a stir. Leave it in there for at least ten to 15 days. Stirring it once every day. When the hide is all black and thoroughly penetrated remove it from the liquid. Rinse it till little color comes out. Gently ring it out if are tanning with the fur on. Then let it dry slightly until it is damp, but no longer soggy. Rub some olive oil into the flesh side and then work it dry to soften it, as you would with brain tan. Hope this is helpful. There are many types of plants you can use, I just find that walnut husks are easy to find and work with. Good luck tanning!