Best Buy has this Dell 27" IPS LED FHD FreeSync monitor for a discounted price of $129.99 with free shipping, Usually it sells for $239.99.
Best Buy has this 27" GIGABYTE IPS LED QHD FreeSync Monitor at $329.99 with nice features and capabilities, it is one of the best mid range 1440p monitor for now.
Newegg has this Westinghouse 34" 3440x1440 2K Gaming Monitor, Usually sells for $449.99, but you can get it today for $349.99 with $4.99 shipping.
Amazon has 27GL650F-B 27 Inch Full HD Ultragear G-Sync Compatible Gaming Monitor with 144Hz Refresh Rate and HDR 10 - Black color for $246.99 which has good review and usually sells for $349.99
Dell has Dell UltraSharp U3419W 34" Curved USB-C Monitor: IPS with built in KVM for $647.99 with promo code "STAND4SMALL". Shipping is free.
Amazon has AOC CU34G2X 34" Curved Gaming Monitor, UltraWide QHD 3440x1440, 1ms 144Hz Freesync for $438.07. Shipping is free.
BHPhotoVideo has LG 34WL850-W 34" QHD 21:9 UltraWide FreeSync Nano IPS Monitor for $999 - $250 coupon = $749. Shipping is free.