Ok, but is there any good 1440p high refresh rate monitor and a decent size?
of course.
when you know what type of panel appears the best to you,
what size will best fit your environment,
what other features you want to implement,
and how much money you are looking to spend
you could get a lot of recommendations.
there are literally hundreds of new 1440p monitors with higher refresh rates on the market right now.
and thousands just from the last few years.
when you can narrow down your decision some to a more specific type a lot of help can be available.
start researching the different panel types available and go check some out to see what appeals to you.
...and don't trust YouTube videos, many of them are supporting...