the most trusted site is hashnest, but ROI is too slow, more profitable is hashocean, but more risky. it pays more then year and you can get ROI in 5 month, but it not fully legit and there is  doubt that its poszi,  in spite of these, i can teach some tactic toy to invest, not to loose, if you reg under my ref.  if you decide it, pm me and i will give you my ref link