A TE IMO is not worth 19th overall pick. That would be saying that Eifert, Ertz or Kelce is the 19th best player in the draft....which is a ridiculous notion. Even if the Giants lose Bennett, I very much doubt Reese would prioritize filling that role in the first round.
Gronkowski, Jimmy Graham, Kyle Rudolph....those guys didn't go in the first round. The only reason Vernon Davis went in round one was because he tore up the combine and ran a 4.3. None of the guys this year will do that.
What I'm trying to say is....NO WAY the Giants take a TE at 19.