In the past year until the beginning at this year, there were many ICO's indeed and you could choose some of good ICO's to invest your money.
But currently, i think there are really only few ICOs are worth to invest. Many investors start to invest smartly, not blinded by the big profit offered.
To choose a good ICO, you will have to find if the company is real or fake first. Later, you will have to see their product whether it can be mass adopted by peoples or not.