There are many passive incomes outside the forum, but to guarantee that it is not a scam, you need to know about it. If you want to do it, you can register for an affiliate business, but you have to really find out about the company for the time period you want.
You can also do it another way if you are not sure about registering for an affiliate marketing business, but you must have capital to own goods that you can lend to others or rent property.

In this forum, maybe you can also do it by having enough capital to lend to those in need as one or more have done so far.