Dock Selection for using with multiple laptops

Hello, I've been searching around on the forum and having a hard time determining what solution to get (if one is even available) for the following configuration:

• Sharing a dock between
  • an Inspiron 5570
  • a Latitude 7490
• Monitors
  • 2 x DELL-U2419H
  • Using Laptop screen as screen #3

I would like to be able to swap laptops between my work laptop (7490) and my personal laptop (5570) with this arrangement. My question is, what dock should I purchase to fully utilize the monitor's full resolution? I can't seem to figure out between the specs and limitations of the different docks. Hoping someone can point me in the right direction. Thank you in advance.