I enrolled on an online market study platform, I won't name it here because I don't want to sound like I'm advertising here.
It's quite simple, they publish dozens of study every day, each of them pays around 100 to 300$ for 30mn to an hour depending on the target they aim at, you answer a few qualifying questions online, and get enrolled by researchers.

I'm putting the money I make in a pinball account, we'll see how long it takes to buy one !