Amazon has the Dell S2721HGF FreeSync and G-SYNC Compatible 144Hz FHD 27" Curved LED Gaming Monitor on sale for $208 with free shipping. Amazon Prime cardholders can get 10% back ($20.80 credit). The 24" Version (S2421HGF) is on sale for $168.

1920 x 1080 (FHD), 144Hz refresh rate, 1ms response time, VA panel

1500R curvature, 350cd/m2 brightness, ComfortView, 2 x HDMI 1.4, 1 x DP 1.2