Looking to purchase a Nikon 24-70mm f2.8 or a 16-35mmm f4

[dearlybeloved]

Looking for a good price on one of these lenses. I have a Tamron 28-75 I would be willing to trade and add cash for a 24-70 but would not want to trade the Tamron if purchasing a 16-35. If any of you guys have one of these lenses and looking to sell for a good price then please let me know.

Thanks