What ways can you make money online other than GPT, PTC and PTR?

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I'm looking to make some extra money on the side but I want it to be decent at least. For starters, I have a job. (For those that might attack me and say I need to stop being lazy and go get a real job.) I'm not looking to get rich. I've seen those scams that say from 1 click on an ad you can make a million. I just want some good extra money to help out when I need it but honestly, I need something that has the possiblility of making me $50. If I can make more that would be great but $50 is good. I know about Gpt and ptc and ptr so I want OTHER ways I can make money. Is there a little selling business, some program, test products, etc. I prefer it to be free to join. If I need an interview that's fine but no upfront costs. Also, I want it to be worth its time. I've been on so many that I've worked like my regular work schedule and only get a penny when I know I should have made like $100. I do put hard work in and take the time and patient but if it takes a year to reach payout, it's not for me. Sorry it was long but anyways, I hope you can give me some good sites. Thank you.