ViewSonic VP3881A 38 Inch IPS WQHD+ Curved Ultrawide Monitor with ColorPro 100% sRGB Rec 709, Eye Care, HDR10 Support, USB C, HDMI, USB, DisplayPort for Professional Home and Office - Newegg.com
Visual 34" and 38" 21:9 side by side comparison : r/ultrawidemasterrace
Amazon.com: LG 38WQ88C-W 38 Inch Curved 21:9 UltraWide QHD+ (3840 x 1600) IPS Monitor, DCI-P3 95% Color Gamut, HDR10, USB Type-C, AMD FreeSync, Built in Speakers, Ergo Stand (Extend/Retract/Swivel/Height/Tilt) : Electronics
LG announces 49" and 38" ultrawide PC monitors - FlatpanelsHD