I invest in ICO. In my opinion this is a good way to generate additional profit. I invested in various fields and in mobile applications and in education and tourism. But the most profitable for me was investing in real estate. This is a good, long-term investment. Recently I again invested in real estate (if anyone would be interested, then this is an ICO Estate Coin project
https://estate-coin.com). I was hooked that the project offers a new concept of investing in real estate. A key feature of the project is the symbiosis of information technologies and technologies for the construction of residential buildings.
This is my subjective opinion. Everyone decides how to use their investments.
Good luck!