Pick up TE or QB

Trying to pickup another TE. A few teams in my league are weak at the position. I have Gronk and Martellus Bennett. I have a free spot after a trade. Hoping that if I pick one up I will have trade value.

I can get Fleener, Cook, Zach Miller or Evan Engram.

Should I pick up one of them or look at getting another QB.

I have Cam and Tyrod. Alex Smith and Bradford are available.

Don’t know if I trust Tyrod long term