A very good website i use for technical analytic is tradingview , If you know how to work with tools , you also can follow some of the best in technical analytic and guess the price , remember , nothing is guaranteed in here , they are just predictions could be right or wrong.
I agree to you that tradingview is a useful website with a lot of protrader that give signal wich coin will be pump up but in the end no one will know what will happen to that altcoin in has a possibility to pump up or falling down all you need is a good research and analysis because market is a full of suprises and also big whale.
Yes, I also agree with you that tradingview is really useful for all of us to put into practice for prediction. First up, Tradingview has independent foundation in trading than any other. It helps us analyze easily in any time. Moreover, Tradingview also help us approach many different market. However, there is no doubt that no one can predict completely accurate the price. We dont have fixed way to do good prediction, its always wrong in our prediction. Sometimes, if you do have many failure, you can predict more exacted.