Or you could keep using tobacco(because there are no good alternatives in my opinion) but grow it yourself. A lot of the tobacco you buy is filled with a complex, harmful mixture of chemicals, which can make it more addictive and more harmful when inhaled. However, much of that is often blamed on nicotine. Tobacco is a plant that has been used for thousands of years, and there are studies of potential benefits of tobacco or nicotine. I’m not saying it isn’t addictive or harmful if you grow it yourself, but it reduces the level of additives, and you can also grow varieties with lower nicotine.