i would recommend these :
https://www.amazon.com/Dell-Gaming-S2716DG-LED-Lit-Monitor/dp/B0149QBOF0/ref=sr_1_1?s=pc&ie=UTF8&qid=1472221562&sr=1-1&keywords=1440p+144hz+LED+dell
https://www.amazon.com/BenQ-XL2730Z-Monitor-Resolution-FreeSync/dp/B00TUK9D9K
they are both 1440p and 144hz 1ms with either G-Sync or Free-Sync depending on your graphics card and at a really affordable price !!!