EDIT: My speculation, not my RIA's: If the global economy wasn't backed by USD, I would recommend foreign funds/ETFs, but everything is interconnected with the US economy. Maybe in 50 years if the global economy moves to anohter currency, but what is there? sterling? renminbi? rubles? rupees? there's nothing.
I'm not sure what good gold would do you if people start physically fighting each other for food and water.
(Joking, don't ever take my financial advice on anything!)
TIPS. Stocks. Real estate. Cans of beans.
Inflation means purchasing power going down. There are likely knock-on effects stemming from precisely why the dollar weakens. But the general treatment to a declining asset is to sell it. For dollars, that means consuming and investing.
This is not financial advice.
I made a decision earlier this year to rebalance my portfolio toward more of a 50/50 split with US equities and international equities. Whatever you think of the current political situation in the US, I don't think it can be ignored that the US has shown itself to be an unreliable partner. I believe there will be real, long-term consequences to this. Believe me when I say that given the history of US markets, it brings me no pleasure to bet against them.