You have already said that there are many similar threads related to this topic so should do some efforts yourself and have a look on them.Its depend on you that whether particular ICO suits your utility or not and for that you need to do some research yourself.Most of the ICO these days are becoming scams so we have to be careful for looking for a legit project.Some ICO like Cedex,grain,Eligma have proven great in the past.So select project like them.