I totally agree with ndalby- Gaming desktops almost always provide more power at a better price than gaming laptops (think “mobile” processor versions, limited space, etc.
Right now, the price of certain desktop components (mainly graphics cards) has skyrocketed due to bitcoin. So, at least for now, it might even be worth it to buy a pre-built Gaming PC.
Here’s a good gaming laptop- I recommended it to someone who needed a new laptop, and they love it. (One complaint- the fan, at max speed, is slightly “rattly”, but only if you hold the laptop at a certain angle. Here’s the laptop: https://www.amazon.com/MSI-GL62M-7RD-1407-Performance-SteelSeries/dp/B072QT88DG/ref=sr_1_4?ie=UTF8&qid=1520898338&sr=8-4&keywords=msi+gl62m Was originally $700, the price might come down.
Hope this helps!
-PaperAirplaneGuru
P.S. I just built a gaming pc for about $800- here’s my part list. Great for video editing, gaming. bitcoin mining, etc. https://pcpartpicker.com/list/fFnFTB
Good luck!