I don't really know of paid ICO research services and there are a lot of websites out there, that are offering an overview of upcoming ICO's for free, but of course with this sites you never know if they were paid by an upcoming project to get a better rating or stuff like that so you always have to take that "free" info that you are getting there with a grain of salt.
I am part of DuckDao which is a launchpad where you get the chance to get private sale allocations and i have to say that besides from that chance to invest early into projects there are also a lot of people inside this group that have a lot of knowledge and connections in the crypto space. So a telegram group like that is definitely helpful.