IMO Dell Alienware and MSI gaming laptops are among the best laptops. However, ROG series is also best but i like MSI laptops because of their low price while built quality is great.
under 2k you have many options available. if you are specifically looking for black friday sale, i think you can easily purchase a little older model in great price from Amazon/Newegg.
Take a look at these laptops:
https://www.newegg.com/p/2WC-000N-00CF3?Item=9SIA7AB9J13353
https://www.newegg.com/p/1TS-0016-008H1?Item=9SIA7AB99E0547
https://www.newegg.com/black-dell-alienware-m17-r2-gaming-entertainment/p/2WC-0009-006H1
All these are competitive Laptops having similar specifications.
Now alienware is too expensive in fact 2.5k. if you are able to find the exact model with RTX 2070 and same specs in 2k in black friday sale it will be great.
take a look at their review over here:
https://www.notebookcheck.net/MSI-GE75-8SG-Raider-i7-8750H-RTX-2080-Laptop-Review.415034.0.html
https://www.notebookcheck.net/Asus-...ter-than-the-G731GU-GTX-1660-Ti.433037.0.html
now if we talk about msi and Asus both laptops are almost same but i
f were you i would purchase MSI.
now as you are going to purchase from a sale you may not be able to purchase desire model but you have to look for these specs for a laptop.
Laptop should must have 9th gen i7, minimum 16gb ram, 500gb SSD, Nvidia RTX 2070 gpu.
remember, before purchasing laptop, make sure the cpu model is i7 9th gen and have 6-core processor.
For gpu, the some of the latest versions of laptops have gtx 1660 and not RTX 2070. remember, gtx 1660 is not as good gpu as RTX 2070 so don't go for a laptop that have gtx1660.
also when you find something good, you may mention its link here.
but the three laptops i mentioned above are very good laptop and are probably best for your budget.