Follow
1
Productive land with no debt
Farmable land
2
Precious metals
3
Real estate with no debt
4
Businesses that produce essential goods or services with no debt
5
Foreign currency of a country that did not economically collapse, in my opinion this is risky because another country might collapse also
6
Skills that can be transfered at a flexible price but are necessary allowing someone to increase the price and the other person to have to pay it if they want the service
