Delve within a site

I haven't seen this but you could add content from a particular site to a board and then add it to your favorites so it is always up top. https://support.office.com/en-us/article/Group-and-share-documents-in-Office-Delve-da0c5804-01ef-4edd-8b87-e576b19bef3e#BKMK_FollowABoard