Usually it depends on your investor. You should be very clever in chosing an ICO. But always make an analysis for each and every ICO that you want to join, because today there are many scam people.
Today, the analysis of the company is undoubtedly one of the most important requirements and the ability to distinguish between scams very well will help you make money. Since now there are a lot of them and they greatly affect the income. Just learn to count the opportunity and ambitions of the company.