I found the gold/silver ratio (XAU/XAG) on the Oanda forex broker. You can also view on TradingView as well. This is the most reliable metric for general global risk to the market. I would rely a lot on Federal Reserve data since there is a history of manipulation there.
Get some free trading tech secret tools from this PDF books – QUANTLABS.NET
Ensure to join our private chat server anonymously with no tracking quantlabs.info