There are many gold traders worldwide but no clear signaling system for them to use.
You can trade spot gold, futures, even crypto pairs or crypto futures like Pax Gold and XAUT Gold/Tether. Most prop trading firms allow XAU/USD trading.
Traders can also check the USD and other currency movements also with the heatmap for correlations/confirmation.
https://www.forexearlywarning.com/
https://www.forexearlywarning.com/the-forex-heatmap