There are multiple sites which you could use for a variety of purposes. For instance, my favourite site for news is cointelegraph. I keep reading the artciles on it. You can get to know everything that's happening around the world in the crypto market. For reading the charts I find Trading view as the best site.
It also provides many types of tools which you can use for analysis. You would be knowing coinmarketcap which can be used to find the price differences of a particular coin between different exchanges.