It depends. Seems like some offenses are placing less of a priority on the position, so that’s why you might not see as many. Rudolph is pretty good for Minnesota, Burton on Chicago is solid more of a receiving type. There is a crop of pretty good young TEs probably led by Kittle but also includes Njoku, Engram with NYG when healthy, OJ Howard on Tampa, Philly actually drafted a 2nd TE to pair with Ertz last year.
I do agree though, I think there are quite a few teams that are going to be in the market for a TE. Not sure what the WR class looks like this year but that could make a difference as well.