I was doing really well working remotely until recently, so I think I know what I'm talking about somewhat.
Become good at something that people need. This might sound very vague to you if you don't have a lot of experience.
Programming, art, CAD, voice acting, video editing, community management. Countless more I'm sure. AI will replace these more and more, sadly. A lot of online writing jobs are going away already.
I know a guy online who makes a few hundred dollars a month from his YouTube channel. He spams stupid unoriginal 5 minute videos about his favourite topic and his "business" is slowly growing.
If you really have no skills, or passions, and don't have the time to become good at something. Look up "Remote Virtual Assistant Jobs".
Sugar babying, OnlyFans and similar, are probably easy to get started with. I googled and it says the median OF monthly income is $180. Consider that you are putting in a ton of effort and exposing your entire body, face, etc for that little money. Also, all your content will be uploaded to free websites and stay there forever. It might make you feel emotionally bad as well (it would for me at least.) I do not recommend this.
Try this:
1. make a list of things you really like (that you enjoy spending time on)
2. try to figure out, for each of them, how you could monetize them
3. pick one and work very hard on it for a long time
4. make your first money and keep going. you will likely make very little money at first. don't give up. keep going.