In addition to ether and bitcoin, I think it is advisable to buy EOS (despite the controversial events taking place around project and the negative from the community). NEO-chinese ether will pop up as soon as China creates all the conditions for crypto-currencies, and everything is already going to this. China will be the first, and the West and all the other countries will be at the end. I also think it makes sense to buy storj, ontology, stellar, ada.