Best option is trading, if you know how...
Yep, by far. Making 1% profit daily is really easy but you need to know some basic things about trading. If trading isn't an option and you have free pcie slots waiting to be filled, I would buy two more 470's. If btc stays above $1000, S9 can ROI too.
About 'cloudmining', it is an easy way to loose your $350, much more fun to throw your money out the window.
Trader can make profits both ways, moon and back. Miner needs growing markets to make that daily $1.