Thumb Score: +21

Amazon.com has LG 27GX700A-B 27-inch Ultragear QHD (2560 x 1440) OLED Gaming Monitor, 280Hz, 0.03ms, NVIDIA G-Sync, AMD FreeSync Premium Pro, VESA DisplayHDR TrueBlack500, with up to DCI-P3 99.5%, HDMI 2.1, Black for $385.27.
Sihpping is free.

Display[list][*]26.5″ QHD OLED[*]2560 × 1440[*]280Hz Refresh Rate[*]0.03ms GTG Response Time[*]4th Gen OLED / WOLED[*]Primary RGB Tandem[*]1500 nits Peak Brightness[*]1,500,000:1 Contrast Ratio[*]DCI-P3 99.5%[*]DisplayHDR True Black 500[*]FreeSync Premium Pro / G-Sync Compatible