For small quantities, you can buy US American Eagle coins from a coin dealer. Available from 1/10 TO to 1 TO sizes. You can buy a little cheaper if you buy 10 - 20 ounces at a time. You can take these home and hold them privately. Bank box is good unless gold is recalled by the government. US gold coins can even be held in your Individual Retirement Account.

You can also buy an exchange traded mutual fund that only holds gold bullion. Symbol is GLD. Very easy to do. Low commissions. Sell at any time. Very liquid. No worry about storage.

If you're a collector, you can buy older US double eagles ($20 face) in high grades. You pay a premium over the gold value but some think this premium will go much higher as collectors want these scarce old coins, usually St Gaudens type. Some sell today in the tens of thousands per coin. Graded and encapsulated is a requirement for these.

You used to be able to have your Swiss bank buy and hold bullion for you privately in Swithzerland. US has just about eliiminated the ability to move significant funds out of the country without disclosure. Swiss banks have caved in and tell the US whatever they want to know about your account. There are still ways to hold bullion outside the country but not worth the trouble unless you have several million $ to invest.

Finally, you can buy high denomination casino slot tokens. The bigger casinos issued $100 and $500 denominations with gold centers, usually 10k or 14k. Usually have about 1/2 an ounce per token. Not many of these survived but it's a way to combine your hobby with a desire to hold some gold as a hedge against the dying dollar.