I've been trying some custom approach / experiment on detecting reversal play in advance stages -- and my current case study is XAUUSD. Here's how it looks. Based on weekly data, we got a thinning price line with a shifting inverted support lines (bottom lines). A good confirmation Identifier would be a complete horizontal inverted support line shift.
1950 (completed support line) would be the key price point for that level.
Touch it, and we got a BUY SIGNAL. Non-confirmatory (risky) would be 1940 level.
TAYOR.
Safeguard capital always.