https://alternative.me/crypto/Go down the page to the chart and click on "max". You will see that the current reading of 10 is about as low as it can go.
I would say from looking at the chart; a reading above 35 is a buy signal.
The current dip might last longer than we are predicting or speculating and if you thing 35 is somehow low already, be ready for the regret you may feel as it goes lower. The dip will more likely keep on going and the current dip we are experiencing might be nothing compared to the dips that are about to happen. Considering the crisis with China right now wherein crypto services are being banned or getting restricted, it can already be an indicator that the worst is yet to come. If ever that continues, it will surely make a huge impact on crypto's price so be mindful on what's happening in your surrounding always to know the best course of action.