There are many sites which got the price tracker, but the thing is that if you are to get proper idea then it is MUST to have proper guide with all the tools and stuff. For Forex/Stocks, it is generally Bloomberg that you look at, but for Cryptocurrency price charts , I feel RSI Hunter is the best place, as they have extremely in-depth system in terms of providing live feed along with several other features, so to me they are the BEST!