4-Teach English or any language you master
If you’re planning to spend a longer period of time somewhere, for example, nine months to two years, you can get paid to teach English or another language abroad. For English, Being TEFL certified can help you to prepare for the job, but it’s not an obligation though. If you want to explore this option, you can check TEFL.com. Today, it’s still one of the most trusted resources for online postings.
For a shorter journey, You can try Diverbo, which sends volunteer groups in villages in Germany and Spain to help locals to practice and improve their language skills. It doesn’t cover flights, but you will get room and board during the program.