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.
Real estate market are always profitable in most parts of the world. People buy the properties and always sell them at profit because there is always the demand for the property due to increase in the population. BTC on the other hand is slow these days but when it moves, it can give more profit than properties in less amount of time.