There's not too many choices for 1440p 144hz monitors above 27 inches unfortunately. 27" is kind of the standard there. That being said, There are some options for you, 2 of which are 32 inch monitors, and 2 are 27 inches:
32" Inch:
1. ViewSonic VX3258-2KC-MHD 32" 2560x1440 144hz with AMD Freesync. $376 ------- This Monitor is 1440p and 144hz at 32 inches, but lacks Nvida Gsync or Vesa mount compatibility. @https://www.newegg.com/Product/Product.aspx?Item=1B4-009M-000Z0
2. 1. Acer XZ321QU bmijpphzx 31.5" Curved 2560x1440 144Hz with AMD Freesync. $567 ------ Like the first one, its 1440p 144hz, with no Gsync capability, however it does seem to have Vesa compatibility. At $567 though, it's not a great value, especially since it doesn't have Gsync. But it's an option. @https://www.newegg.com/Product/Product.aspx?Item=9SIA24G8W76000
27" Inch:
1. Acer Predator XB271HU 27" 2560x1440 144hz (165hz OC) with Gsync. $499 ----- A bit expensive, but looks nice and has good reviews. @https://www.newegg.com/Product/Product.aspx?Item=N82E16824011082&Description=monitor&cm_re=monitor-_-24-011-082-_-Product
2. Acer XG270HU 27" 2560x1440 144hz with Gsync. $386 ---- Good monitor, but doesn't seem to be Vesa mount compatible. This is probably your best value here imo. @https://www.newegg.com/Product/Product.aspx?Item=N82E16824009769&Description=monitor&cm_re=monitor-_-24-009-769-_-Product
If you are ok with 27", I do recommend going that route as imo, they're the better value. Your 32" options are limited from what I could find, but there are a couple options there to pick from. Hopefully this narrows the search for you.