The one and only safest Method is FAUCETS. No investment, No Risk, No Tension. There are lot of Faucet rotators to simplify your job.
it's true but you should take into account the fact that they are not so productive in terms of profit, you need a bot at the very least to be profitable, and i can't find one for now
otherwise the reward is around 0.002-3 per day if you work 4-8 hours with many good faucets of 1k satoshi each