Just find coins that will live in near future, find appropriate buy and sell point, make stop-loss
The thing is that 'just finding' coins who will live in the near future, doesn't guarantee you any decent gains in terms of the price!
And how are you going to study all those white papers of thousands of coins??
Way too complicated for me.
I purely focus on trading. I check the daily volume, winners and losers of the last 24 hours and look for certain patterns and trading set ups. That's like a check list.
That's it. Never ever will I hold altcoins for a longer period of time. I try to take advantage of their volatility by trading, to make more BTC with it.