Can use coingecko, coinmarketcap and similar websites that show % of movement up and down then you go to the chart and see nothing happening, 80% of the time are just some shitty consolidations so you have to wait an hour or so for trend to develop.
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The sites you mentioned can absolutely not be relied on regardind the data you talked about and I would never make my trades on data from Coingecko or Coinmarketcap.
Why? The data on such sites are usually calculated, so they are not correct for the individual exchanges where you want to execute the trade. In addition, the data is not updated within seconds, but sometimes actually lags behind for several hours. Thus, these data are completely useless as indicators.
I usually use directly the data of the exchange on which I want to trade. It is also very easy to use bots to give personal signals such as ("Volume on BTC is increasing by leaps and bounds") and then react immediately, the exchanges also offer interfaces to be able to access this data yourself. The data is usually also very reliable and quite suitable as a trading signal.