If your budget is unlimited then get the Acer Predator Triton 500 PT515-51-71PZ with the Intel Core i7-9750H (Intel Core i7) and the NVIDIA GeForce RTX 2070 Max-Q - 8192 MB, Core: 885 MHz, Memory: 1530 MHz, GDDR6, ForceWare 417.59, Optimus which is a "Lot of Gaming Performance Despite the Slim Case" and as most of the reviews state: 

With the Predator Triton 500 Acer sells an elegant and extremely flat gaming notebook without any major flaws. In all rating categories, the 15-inch laptop earns at least 70%, which speaks for a balanced and well-thought-out system. Our criticisms, which are in the "Cons" list on the right, are rather insignificant. To get a "very good" as an overall grade, Acer should have put more emphasis on the fan control, for example; this includes the sometimes annoying starts in idle. 

Another thing is the temps (which is common to all these sorts of gaming laptops) you will need a laptop cooler because: the temperatures are also in the midfield. While the top of the case got hot in the stress test (FurMark & Prime95), reaching up to 49°C (120.2°F), we were able to measure up to 59°C (138.2°F) on the bottom. The device is thus not suitable for gaming sessions on the lap. In the more practical "Witcher 3" test, the values were only slightly lower" which is still not at critical levels.