Amazon
has the Dell Alienware AW2521HF 240Hz FHD 25″ IPS Monitor (2020) for $315. Shipping is free. Temporarily out of stock, but can still be purchased.

• 1920 x 1080 (FHD), 240Hz refresh rate, true 1ms response time, 400 cd/m2 brightness, USB 3.0 hub, 2 x HDMI 2.0, 1 x DP 1.2