For $750:
PCPartPicker part list:
https://pcpartpicker.com/list/kTVcYT
Price breakdown by merchant: https://pcpartpicker.com/list/kTVcYT/by_merchant/
CPU: AMD - Ryzen 5 1600 3.2GHz 6-Core Processor ($149.99 @ Amazon)
Motherboard: MSI - B350 PC MATE ATX AM4 Motherboard ($64.89 @ OutletPC)
Memory: Team - Vulcan 8GB (2 x 4GB) DDR4-3000 Memory ($95.89 @ OutletPC)
Storage: Western Digital - Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($43.89 @ OutletPC)
Video Card: Asus - GeForce GTX 1050 Ti 4GB Phoenix Video Card ($214.98 @ Newegg)
Case: Cooler Master - MasterBox Lite 5 ATX Mid Tower Case ($40.00 @ Newegg)
Power Supply: SeaSonic - FOCUS Plus Gold 550W 80+ Gold Certified Fully-Modular ATX Power Supply ($54.99 @ Newegg)
Operating System: Microsoft - Windows 10 Home OEM 64-bit ($89.89 @ OutletPC)
Total: $754.52
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2018-03-27 00:18 EDT-0400
Has a 6 core Ryzen chip and mobo that will allow for OC. 2 x 4GB of RAM at 3000Mhz. 1050Ti for now, so that when the new gen comes out you can pick up a better card. OS included.