if you have a big capital it will be easier to generate passive income but if the passive income we get from businesses that still needs a lot of our intervention, I think it's not a good idea. I prefer to invest in rental property because it was more practical.
I believe there are a lot of real time opportunities to generate passive income with lot of capital amount when compared to online opportunities. We could not find many legit opportunities online even we will be ready to invest very big capital amounts. Based on a rental trend in your country, you can earn handsome by renting out properties.