Sometimes it's almost as if people want to rub it in. Have a GPU from top 3 best performing cards in the world and has to ask if it will run 1440p 144Hz well enough. LOL
If you want cheap 1440p 144Hz... probably try find some VA and TN monitors, the VA are likely to be curved Samsungs though and TN have their own endless issues.
350 or under... they will most likely be older undesirable models.
371 EUR C27JG52:
425 EUR 2719DGF:
400 EUR VG270UP
Would I recommend any of these? Certainly not.
Next time... leave as much as you paid for GPU for a monitor.