there aren't really that many options.
there's only TN available, lately there are some 23'' 1440p monitors
for 1080p/gsync there is only one panel that's used by all brands
ASUS ROG Swift PG248Q, AOC g2460Pg, Acer Predator XB241Hbmipr --- same display, other frame and menu
personally I'd go with the cheapest. ASUS' quality control is the best though.