I can definitely recommend the LG-27GN800-B, i have had it for quite a while, and i love it!
https://www.amazon.com/LG-27GN800-B-Ultragear-Response-Compatible/dp/B08LLD2QXJ?crid=3LTSIBM3V9M4A&keywords=gamer+monitor+144hz&qid=1667260303&qu=eyJxc2MiOiI0LjMwIiwicXNhIjoiMy4yMCIsInFzcCI6IjAuMDAifQ%3D%3D&sprefix=gamer+monitor+144h%2Caps%2C249&sr=8-10&linkCode=ll1&tag=mathiassnderg-20&linkId=331387fa2c7af91f55964c84aa12fdb8&language=en\_US&ref\_=as\_li\_ss\_tl
You can probably find one for a little cheaper but this one is well-reviewed and has been great for me.
https://www.amazon.com/gp/product/B08LLD2QXJ/ref=ppx\_od\_dt\_b\_asin\_title\_s00?ie=UTF8&psc=1
All 3 are solid monitors in their category. I'd probably go with the 27GN800-B because it is for a good price right now. No guarantee it will lower but who knows.
I'm an engineering student, and use the following, combinded with a 24" screen, and that works really well.
https://www.amazon.com/LG-27GN800-B-Ultragear-Response-Compatible/dp/B08LLD2QXJ?crid=3LTSIBM3V9M4A&keywords=gamer+monitor+144hz&qid=1667260303&qu=eyJxc2MiOiI0LjMwIiwicXNhIjoiMy4yMCIsInFzcCI6IjAuMDAifQ%3D%3D&sprefix=gamer+monitor+144h%2Caps%2C249&sr=8-10&linkCode=ll1&tag=mathiassnderg-20&linkId=331387fa2c7af91f55964c84aa12fdb8&language=en\_US&ref\_=as\_li\_ss\_tl