This top one I think is the replacement for the one beneath that but more than your budget...
I can't see any difference between these so the out going model at the bottom is probably the best value, both only 60Hz but you didn't say whether the occasional game was serious FPS type titles or not.
LG 43BN70U-B
LG 43UN700
EDIT:
Actually this Acer on Pre-Order would be even better value.
DM431K
https://www.overclockers.co.uk/acer...d-backlit-gaming-monitor-black-mo-14r-ac.html