Any underrated ways to make money? (Drop & Find ideas!)

I am currently lacking creativity in making money. I lately began with a sales job (irl) but I want to make some more on the side. Youtube is oversatured with "How to make millions online quick videos and they're all feeling like some sort of scam and all the tips & tricks are getting repetitive.

I'm creating this thread so we can all share some actual usefull information on this "money making" topic.
Drop your fav youtuber or your fav online business model!

For anyone just reading,
Hope you find something of any worth!

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Yo, almost forgot to add a small list of good "financial" youtubes I watch.
they seem pretty cool ig

Biaheza - https://www.youtube.com/@biaheza
Tradinglab - https://www.youtube.com/@TradingLabOfficial

I forgot most of them but I will add more in this list!