XAUUSD is most active from 3PM - 7PM Kenyan time, and there is directional momentum during these hours.
This is the pre-New York & the NY session, on most days you will have some sort of directional momentum on Gold during these hours.
I don't trade Gold, and I've got not strategy on trading it to advise you any better. But looking just at the sessions chart & generally speaking, these are the trading hours in which Gold is really moving.
Refer to the first chart. It is the 1H sessions chart of Gold trading in that past 1 week for the NY session from 3PM - 9PM Kenyan time.
Second chart is the London session. Gold does move during the London session, 9AM - 3PM Kenyan time, but on most days it is sideways for this session. Just compare these 2 charts visually, you will see.
So, if I were you, I would active watch during these hours, depending on which session hours are more suitable to you, and build a strategy around it.