One of the largest platforms to find volunteer work on a farm is WWOOF (World Wide Opportunities on Organic Farms). There are WWOOF hosts all across the world. Choose your country and register to find opportunities.
If farming isn’t your thing, you can also find volunteer work at hostels in return for free accommodation. Visit Worldpackers to find and apply to opportunities all around the world.
There has never been a better time to travel and get paid by working remotely.
While there are opportunities everywhere, Asia is perhaps the hub for English teaching jobs. Many postings do not require any experience, but you will earn more money if you have teaching experience or a college degree.
If you work for a multinational corporation with branches in other cities, ask your company for a transfer or find opportunities for work-related travel. Usually, employers will cover the cost of flights and hotels for an official visit.