- Buy more commodities.
- Buy REITs or real state.
- Buy stocks of listed companies.
- Buy art.
Art? No.
Stocks? Yes, but buying them right now is a huge gamble since we've been in the longest bull market in history, and many of them are extremely overvalued. Even if you bought an index tracking fund you might be in trouble, never mind trying to pick stocks individually.
Commodities? I don't know; I don't invest in them except for a little bit of silver. Gold and silver are what most people think of when considering inflation hedges, and I'd say those are probably the best choice. Volatility is pretty low, and you can always find a buyer when it's time to sell (unlike art).
Real estate? Right now that's also very risky, because I've heard stories about the market being in a bubble. But buying something like a rental property that provides income might not be a bad idea. REITs are just a subset of stocks, and personally I like them for their income. But again, their value could fall significantly if there is a housing market bubble and it ends up popping.