I would double check the performance of this, but I believe I see people recommending it.
$150 and goes up to 240hz and is a well known brand. Sometimes it also goes on sale to $150 on the Dell website which h should give you 3 year warranty.
This one goes on sale for $150 and will work with 120hz with your X. I couldn’t get adaptive sync to work, but it works on my pc just fine