32" 4K, get a TV. Plenty 120 FPS capable displays out there.
I recently got a Samsung QD 32", it was only a few hundred dollars.
You'll have to shop around for pricing:
32" Class QLED 4K Q60D | Samsung US
Discover the latest art display TV features and innovations available in the 32" Class QLED 4K Q60D.www.samsung.com
Samsung's list prices are not likely what you will find in stores.
They also use a similar panel in a gaming monitor for about the same amount:
Odyssey G6 32 inch G65B QHD Gaming Monitor | Samsung US
Discover the latest features and innovations available in the 32 inches Odyssey G65B QHD 240Hz 1ms(GtG) HDR600 Gaming Hub 1000R Curved Gaming Monitor.www.samsung.com