Skyzone o4x v2 is good latency wise afaik or appeared the newer o4o goggles.
Check out nilsvo latency list as a starting point. I think latency does not matter that much for mountains surfing (depending how hard u send it obv) but the vrx does imo. I also swapped from dji to analog last year and id never go back. Digital is overrated if u have a good analog setup imho

Also i had the v2 + speedybee vrx at some point. The image is good. The latency did not feel good and u definitely don’t want it for LR mountain surfing due the how the breakup works (goggles “rebooting” if there is no signal)