I am holding Bitcoin Gold, because this coin is still undervalued right now and you can see on coinmarketcap thats BTG its -97 percent on ROI, and now its growing fast.
I think good choose for holding bitcoin gold because you can get much profit later when BTG back to higher price, but always need time when bitcoin raise to higher price waiting for your assets back to higher price, maybe you can hold any other coin but try to sell faster when reach your profit with hold for long time.