Stocks? Bonds? Bitcoins?? Real Estate?
Heres my recommendation first Real state for stable income.
second bitcoin for unstable income but might get a big income in one shot.
third is gold for lognterm investment gold will be your safe haven for your money
if you dont want to use it.
I think gold is less profitable now.
Because in my country now really fall in gold prices and it may take a long time to re-stabilize. even longer to wait for the price rise seems