Hi, as I know, there is a newbie-friendly way to generate passive income.
But the premise you are willing to put effort in the front end, then eventually you'll start earning an "almost" passive income.
The reason why it is "almost" is because it will still require a minimum maintenance (couple hours a week), otherwise, the income will start decreasing.
Anyway.
I'm going to tell you the principles, then you can find all the details through Google.
Amazon KDP&ACX
Here is the process.
1. You go to Amazon kindle books's best seller list, and to analysis what kind of books are trending. The book rank should be about 100,000.
For example intermittent fasting, procrastinating, etc.
2. Use amazon keyword auto-suggestion to find the small niche keywords, e.g. intermittent fasting for women. And it will be the title of your book.
3. Once you decide the book title, you can now go to Upwork and hire a writer to write the book for you. The price should be $1.5-$2 per 100 words. Then go to Fiverr to hire someone to design the book cover for you.
4. Once the book is done, you upload it to KDP, then go to ACX to hire a narrator to narrate the audiobook for you.
5. OK, now you have ebook and audiobook, you can start using AMS (Amazon Marketing Service) to drive traffic to your book and start making money. My ROI usually is 150% - 200%.
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Hope it helps