BuyDig has the 34" LG 34UC88-B 3440x1440 WQHD Curved IPS LED Monitor w/ Accessory Hookup Bundle for $554 - $10 with coupon TAKE10OFF = $544 with free shipping. Features 21:9 Curved QHD IPS, sRGB over 99 percent, Color Calibrated, Screen Split 2.0 (PIP Mode), Dual Link-up, Dual Controller, USB QuickCharge, game mode, black stabilizer, dynamic action.
eBay has the Samsung CHG90 3840x1080 HDR FreeSync 49" Curved QLED Monitor (Matte Dark Blue Black, LC49HG90DMNXZA) for $820 with free shipping. Features super ultra-wide 49-inch screen with its innovative 32:9 aspect ratio, 3840 x 1080, 144Hz refresh rate, 1ms response time, VA panel, 1800R curvature, HAS stand, 2 x HDMI, miniDP, 2 x USB 3.0.
Has good Amazon Reviews.
eBay has the 34" Samsung CF791 3440x1440 Curved Ultrawide Monitor for $595 with free shipping. Retail price: $748. The discounted price is reflected in cart. Features stunning 1500R Curvature 34" VA panel, 4ms Response Time, 100Hz screen refresh rate, dual 7-watt speakers, ultra-slim design, 2 HDMI, 1 DisplayPort and 2 USB ports.