It's not quick money, but writing books can generate an ongoing royalty stream. And, they're good resume builders if you want to do freelance work. It worked fo

It's not quick money, but writing books can generate an ongoing royalty stream. And, they're good resume builders if you want to do freelance work. It worked for me. You can do worse than O'Reilly Media. https://www.oreilly.com/work-with-us.html https://www.oreilly.com/work-with-us.html And there are other publishers.