Cal, Oregon State, UCLA, Washington
I don't have the time or the inclination to do the research, but I can't imagine that any school aside from Stanford would sign two tight ends in one class, but no school aside from Stanford can legitimately claim to be Tight End U. Tucker Fisk is small by Stanford standards (most Cardinal tight ends over the past five years have ranged between 6'6" and 6'9"), so it wouldn't be a surprise if he transitioned to fullback at some point. Even if he doesn't, his film (below) shows solid pass catching and the strength necessary to be a proficient blocker in the running game.
With Dalton Shultz and Kaden Smith already on the roster and fellow recruit Colby Parkinson joining him in Card Class 17, Fisk will arrive at Stanford and find a herd of tight ends. Fisk could find a role as the blocking tight end, or, as mentioned above, he could move into the backfield as a fullback. Either way, don't expect to see him on the field until 2018 at the absolute earliest.