What is the best way to increase passive income?

[Tommy Boonchuaysream]

I have been trying to increase the amount of passive income but I’m not sure what’s the best method out there. I have been thinking about different investments such as index funds, robo-advisors or a high-interest savings account. I have seen good robo-advisor options such as Acorn or Wealthfront and I’m still deciding. I also came across Ally or Beam giving the best interest rates out there. 

But since there is always a risk to investments, I am planning to use either Beam or Ally as a high-interest account. Looking for any advices! Thank you!