Dell S2722DZ (2560 x 1440 pixels, 27") - buy at digitec
Dell U2719D 27 Inch QHD 2560 x 1440 60 Hz IPS Anti-Glare 16:9 5ms Height Adjustable/Tilt/Swivel VESA DisplayPort HDMI 3 Year Replacement Service Black Silver: Amazon.de: Computer & Accessories
Dell S3423DWC (3440 x 1440 pixels, 34") - buy at Galaxus
Dell S2722DZ (2560 x 1440 pixels, 27") - buy at digitec