The clue to safehaven investing in uncertain times is right in front of you three times a day. Ummm so yes that is food. Food consumption actually increases in times of uncertainty.
I am alarmed at the lack of chat on the topic of agriculture and can only assume people will be happy to pay a hell of a lot more for food and not seek any way of getting a piece of the profit bonanza for quality agriculture based companies. Do your research cos its going to be big and it is going to last for a long time.
Some bull markets never die. For example the timber market in Easter Island ...