For technical analysing I just follow bitcoin graph , If the bitcoin price rise up usually 99% of the coins and tokens would rise too , no matter it is XRP or ZEC , the only thing that remains is how much they can rise if the bitcoin rises , and I would say it depends on how deep they are and what are the good news about them .
Exactly, because basically the altcoin with the top 10 position is always following the price of bitcoin so there no need to analyze each altcoin because it's just a waste of time. But you also have to be careful because sometimes the altcoin movement is unpredictable.