Reddit mentions of Acer Predator 15 Gaming Laptop, Core i7, GeForce GTX 1060, 15.6” Full HD G-SYNC, 16GB DDR4, 256GB SSD, 1TB HDD, G9-593-72VT

If you want the best game performance for the price, these are slightly over but probably the best value, with the 6GB GTX 1060 and also IPS / 72% NTSC displays.

• https://www.amazon.com/Acer-Predator-Gaming-GeForce-G9-593-72VT/dp/B01LD4MGSA/
  
• https://www.amazon.com/MSI-Computer-GT62VR-Dominator-027-i7-6700HQ/dp/B01K00YHMG/
  
• https://www.amazon.com/Acer-Aspire-Nitro-GeForce-VN7-593G-73KV/dp/B01N35Z1DA/
  
• https://www.amazon.com/Eluktronics-P650RP6-Premium-Gaming-Laptop/dp/B01KZ6BBOM/ ^(be aware: offered 4K model is PenTile RG/BW not-true-4K. See /r/SuggestALaptop/ sidebar for more info. You'll have to run many games in non-native res on a 4K display, but if you did want 4K, I have different recommendations in mind, that use true 4K.)
  
  There are a handful of GTX 1060 laptops that use mediocre TN displays with poor contrast and viewing angles (worse than decent desktop TN displays) that I might suggest to skip, unless you're perhaps getting a really good deal and are planning to replace the LCD yourself. They also use the 3GB 1060 which isn't bad but is lower performance in ways other than memory.
  
  
• ASUS FX502VM
  
• MSI GP62MVR
  
  EDIT: I'll also add, the Lenovo Y720's display isn't nearly as bad as these low quality TN panels, but is only 45% NTSC color gamut, and the meh color saturation could be a downer.
  
  -----
  
  A GTX 1060 should be well more than enough for the last three you listed, but ARK seems to be particularly intensive for some reason, and brief googling indicated that a GTX 1060 6GB is where you want to be for that game. If you want cheaper options with the next step down in GPU I can make recommendations for that as well.

Since you already checked out this and didn't like it then what about this Predator 15 because it comes with everything you need , i7 quad core CPU which is one of the best in the market and great for gaming, 8 GB of ram for smooth multitasking, Good SSD storage of 256 GB for faster boot up and loading, 1 TB of HDD for storage, Full HD IPS screen which is a must have for this price range, high build quality, very good heat management, 1060 GPU that can handle your games with no issues, comes with Thunderbolt 3 like you wanted, and it is within your budget

this seems to be the best Acer gaming laptop with the specs I'm in the market for: https://www.amazon.com/Acer-Predator-Gaming-GeForce-G9-593-72VT/dp/B01LD4MGSA . Has 16GB ram, and more SSD storage than the other three but has the same lower quality CPU as the HP I had picked out in the original three. Currently on sale, down $300 to the same price as the MSI

https://www.amazon.com/Acer-Predator-Gaming-GTX1060-G9-593-72VT/dp/B01LD4MGSA

Anyways, maybe not the best example, but perhaps an example of a gaming laptop with relatively decent performance.