Speaking from my own experience, since April, 2017 my gold has given me a 38% return.
But it is a volatile investment. Today's price is around $1755.00. Last year, it hit a high of $ 2075.00.
If US inflation takes hold, which analysts expect, gold should start going higher again, as a hedge against inflation and depreciating dollar purchasing power.
Since 2019, my bitcoin has increased 3x. It is a much more volatile investment than gold, but shows commensurate higher returns over time. On average, 200% pa compounding, since introduction in 2009.
For those outside of Thailand, good gold coins to hold are the American Eagle, Canadian Maple Leaf, and the South African Kruger Rand. I would recommend the one-ounce coins, not the smaller sizes.
For relative ease of holding, ETF's are worth looking at, but they carry unique risks also. It's all in the fine print!
For a good layman's immersion into the intricacies of gold, I would recommend reading, "Why Gold, Why Now?", a recently-published book by E.B. Tucker. It is relatively light reading, with a lot of useful information inside, and can be used as a worthwhile guide to investing.
EB is a director at Metalla Royalties. Perhaps naturally, investing in a royalty product is his preferred route to wealth. However, he makes a compelling case for doing so.