Both are good. It depends on you. If you know a right house to buy, you can easily become rich in a short time, just like invest your money in bitcoin. Investing in bitcoin and the cryptocurrency are good but they are too risky. You need to understand that you can lose all of your money with cryptocurrencies. They are still new and nothing can guarantee that they will stay here forever
Real estate is still a very good option if you know what you are doing, if you buy at the right place at the right time you can easily multiply your investment many times over in a few years and also if you buy real estate before a big development happens near where you bought, the value of your property will go higher almost immediately and that is always a good thing.