it's relative, i just trusting coinmarketcap for any cryptocurrency data, because this is one trusted site for rating and analyze any data cryptocurrency with real-time monitoring
So the fact that coinmarketcap was recently acquired by Binance doesn't bother you? And the fact that now its ratings can be affiliated!? I would, for greater confidence, use information from several resources in your place!
I think nothing really can be trusted in rating cryptocurrency because most people in getting a rating on a rating platform or website are required to pay a fee, this is based on my own experience as a news listing service provider in several media