What is the best place to find the prices of all cryptocurrencies?

You should go to coinmarket.com... It is the most popular market where to get all the gists on cryptocurrencies and It is also a website where the purchases of all cryptocurrendies are made and they ensure that you get it at a cool price. To go directly to the page where you can see the list of their prices, you should follow this link... https://coinmarketcap.com/all/views/all/