Why exactly did Ripple start going up in the first place?
I would say that the best strategy is lookfor smaller market cap ICOs run by a team that is WELL CONNECTED. The better connected the tram the more chance the coin will explode several times as articles come out about new initiatives.
Apologies, can't help myself being a cynical bastard.
I would say that the best strategy in long term is to invest in assets that actually produce cash flow to the investors.