Different types of social networks out there...but for the ones that are about real relationships, it is simple. I have a core set of friends I want to see ever

Different types of social networks out there...but for the ones that are about real relationships, it is simple. I have a core set of friends I want to see everything they post (that is shared to me), and then I probably have another tier in which I am fine with some algorithm filtering to some degree, or placing in a larger newsfeed.