I have an ABLE account, for people on SSI. It is untaxed, though there is a small fee for just the money to be managed. It is handy, since there is a $2,000 limit on the wealth beneficiaries can have - the ABLE account allows for up to $100,000 to be in there before most benefits are lost. It also invests the money into a stock/bonds/FDIC portfolio of your choosing. If you have enough wealth, you can just deposit money in there until you reach $500,000ish cap for what you can add.

It is really helpful for the poor, since we don’t have many methods for storing wealth that doesn’t involve a mattress. Also, ABLE accounts should be state owned - theoretically insulating them from Musk’s grubby paws. Unfortunately, my state’s ABLE program doesn’t permit Euros, so I suspect no ABLE to be safe from hyperinflation.