Here is an example of a Circa $1600 build with a RTX 2080 Super, Ryzen 3600, 16GB DDR4 3200, 1TB NVMe SSD, 2TB HD, Gold 650w Power Supply and case. You can of course save money by fine tuning the parts but as a starting point it will do... Ibte option below.
PCPartPicker Part List:
https://pcpartpicker.com/list/Vj6gXv
CPU: AMD Ryzen 5 3600 3.6 GHz 6-Core Processor ($194.79 @ OutletPC)
Motherboard: MSI MPG X570 GAMING EDGE WIFI ATX AM4 Motherboard ($199.89 @ OutletPC)
Memory: Corsair Vengeance LPX 16 GB (2 x 8 GB) DDR4-3200 Memory ($72.99 @ Amazon)
Storage: Crucial P1 1 TB M.2-2280 NVME Solid State Drive ($99.99 @ Amazon)
Storage: Seagate Barracuda 2 TB 3.5" 7200RPM Internal Hard Drive ($64.99 @ Adorama)
Video Card: EVGA GeForce RTX 2080 SUPER 8 GB BLACK GAMING Video Card ($679.99 @ Newegg)
Case: Fractal Design Meshify C ATX Mid Tower Case ($104.98 @ Newegg)
Power Supply: EVGA SuperNOVA G3 650 W 80+ Gold Certified Fully Modular ATX Power Supply ($105.88 @ OutletPC)
Operating System: Microsoft Windows 10 Home OEM 64-bit ($99.89 @ OutletPC)
Total: $1623.39
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2019-09-23 08:23 EDT-0400
Intel 9600K option
PCPartPicker Part List:
https://pcpartpicker.com/list/v3rscq
CPU: Intel Core i5-9600K 3.7 GHz 6-Core Processor ($229.89 @ OutletPC)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($34.89 @ OutletPC)
Motherboard: Gigabyte Z390 GAMING X ATX LGA1151 Motherboard ($139.98 @ OutletPC)
Memory: Corsair Vengeance LPX 16 GB (2 x 8 GB) DDR4-3200 Memory ($72.99 @ Amazon)
Storage: Crucial P1 1 TB M.2-2280 NVME Solid State Drive ($99.99 @ Amazon)
Storage: Seagate Barracuda 2 TB 3.5" 7200RPM Internal Hard Drive ($64.99 @ Adorama)
Video Card: EVGA GeForce RTX 2080 SUPER 8 GB BLACK GAMING Video Card ($679.99 @ Newegg)
Case: Fractal Design Meshify C ATX Mid Tower Case ($104.98 @ Newegg)
Power Supply: EVGA SuperNOVA G3 650 W 80+ Gold Certified Fully Modular ATX Power Supply ($105.88 @ OutletPC)
Operating System: Microsoft Windows 10 Home OEM 64-bit ($99.89 @ OutletPC)
Total: $1633.47
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2019-09-23 08:26 EDT-0400
Personally the Ryzen 3600 option would be best and if it is only, and only gaming focused for max FPS, then the 9700K though you will be paying a lot more!!! Circa $150 more....