Using your knowledge to help others as much as possible is the best "work", although you may not get a return on your money, it is a meaningful thing. Of course, if you want a real job, then you should go to the job search site instead of here.
But I learned that one can earn on the forum. How to get started ?
People can earn here on Bitcointalk through campaigns. First off, I'm going to tell you that if you don't know much about bitcoin or cryptocurrencies in general, then forget it. And because you'd have to ask even though you can freely look for information(through reading around or using the SEARCH function) about making money here on Bitcointalk, then I really don't think you're qualified. Look elsewhere.