Now, you have choosing the niche, the next step is to choose the right resource related to your niche. You can compile your knowledge in ebook or video, you can also find some free or paid Private Label Right (PLR) or Master Resell Right (MRR) products.
For paid resources,
You got the file, the next step is to upload it in your website but not directly, I recommend you to split the file (resource) in two parts because we are going to upload them in differents networks for maximising the profit. You can put the second part in text file.