I'll be honest and say, after looking at the stats (not using the WATCH 'EM PLAY strategy), I like Niklas the most. His 70%+ line-up on the line of scrimmage would make him an excellent TE2. We're not looking for heir apparent as I think we can/should re-sign Olsen to a manageable contract due to his chemistry and ability to line up in different spots.
He had the highest percentage of yards after contact, something we desperately need. My wife and I made it a running joke that a Panthers' first job after securing the ball was to fall down. Most of our TD plays were bombs IN the end zone, or, like Smitty always seems to deal with, getting stopped inside the 5. A bulldozer TE with decent hands (his % for drops is skewed considering his lower catch amount) who can get separation and 6+ YAC despite almost always lining up with the OL?
He's 6'7", is the perfect go-to in the red zone that we so desperately need, and although he only has one real season of actual body of work (because of Eifert being used as TE1 before), he did manage a 30+ catch season to go along with his 5 TDs.
Not to mention he'd definitely be available in the late second round in my opinion. A few mocks have him going to the Falcons in the third.