If it is a good project, over time its value will increase, I think that's the easy part of cryptocurrencies. With technical analysis what we can do is maximize profits with pullbacks and other movements, but I have read that most traders lose more than they earn.
As syscoin is already above 200 MA which is what defines the general trend I think it is already a good point of purchase, although it could fall a bit to rebound in it, that would be the ideal case. The other 2 will still have that strong resistance, will depend on whether your strategy is holding or trading at what price you will buy.