There are so many ways to generate an income online, it's overwhelming. But there are also numerous scams, just wanting money and more money as you go along. There are free ways to make money online, but the key is to find the ones that actually work.
Like BookRix, a publisher I have been using for quite some time. A free publisher that will publish your work on all Major Online Bookstores like Amazon, Kobo and many more. They do not charge you anything for all their work, but does take a tiny percentage from your sales to help with publishing costs.