Where to look for work?

How to look for a job on the Internet? I looked at options for online work at various job exchanges, but I didn't find anything worthy and suitable.

I believe that you're unlikely to find something really good on job exchanges. I think the most successful way to make money online is trading. It's pretty easy and doesn't take a lot of time. I also advise you to check out https://topbrokers.com/, where you can find many useful articles, as well as many brokers to choose from.