The real estate market seems to be very strong, but now it has reached the end, and there are very few countries that can invest in real estate. They are some new economies, and they belong to third world countries. These countries have certain profits in their housing prices. But I think the cryptocurrency market is more profitable, but both investments are risky.
You can invest in real estate abroad. In many counties, it is cheap, but you can earn later on it: other people can rent your apartments, flats, houses or whatnot. It will be a stable income.