You can manage your own site and sell something on that, if you will have many visitors on that page you can manage your traffic with ad monetization such as google adsense or direct offers

I suggest trading, because I know that it really works. Forex is a really difficult business. To make money with Forex, you have to know the technique and have enough experience or you lose more than what you make.
The good thing with Forex is that you do not have to be worried about competition. Unlike all other businesses which competition makes tougher conditions for everybody, the more people work on Forex the more money everybody will make because it will make more volatility and movements in the market and volatility and price fluctuation is what we make money through it.
To become a Forex trader you you have to learn it at first. It is not very hard to learn Forex. There are enough free information over the internet. You just need to spend a few months to learn everything. But the more important part is the experience. You have to learn how to use your knowledge to trade. I have some hints for US traders. American traders do not have a lot of options available. The American Trading Commission has licensed only a few brokers to work on the territory of the country. Here is a list https://fx-list.com/brokers-for-us-traders

How often do you play computer or console games? What good online games can you recommend?
What games are most relevant now?
I haven't played anything for a long time.
I only played gambling, I found the most reliable casino sites. I selected suitable sites there and played. I even won money, but not much.

You can blog about your interest and make money from it. You can also promote services such as tutorial services or babysit for people in your neighborhood.

I think good way to earn money is to find good job. I recommend to use special boards with special job search engine. For example I use Jobsora, with it help you can search vacancies on the major job boards and career sites. Here is a link for you to try https://au.jobsora.com/