Whats the best way to make money with 50k followers on instagram?

Hi folks!

As the titel said, what can i do when i reach 50k followers on Instagram? I have heard about
– Dropshiping – but i dont know… My "costumers" may wait for weeks for the products…
– Building a website and through in ads, but i dont know what i will fill out the website with?
– Give out free E-book (CPA??)

In my country (SWE) they are very strikt with tax and that stuff, so i dont know…

What do you guys prefer? I will start with instagram page when i grow followers i…

Whats the best way to make money with 50k followers on instagram?