You can go with this card...
PCPartPicker part list /
Price breakdown by merchant
Video Card: Gigabyte - GeForce GTX 1080 8GB Turbo OC Video Card ($429.99 @ Newegg)
Total: $429.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2018-10-25 11:12 EDT-0400
But the blower cooling is not always recommended.
Or, you can go with this card...
PCPartPicker part list /
Price breakdown by merchant
Video Card: Gigabyte - GeForce RTX 2070 8GB WINDFORCE Video Card ($498.99 @ SuperBiiz)
Total: $498.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2018-10-25 11:14 EDT-0400
Which is same in performance as above but has ray tracing ability, which can be beneficial in the future.
Just make sure you CPU and PSU are good enough to support these.