I was asking the same question a month ago. Not wanting to spend too much I settled on a 4x Weaver with 8” eye relief. Suits me ok.
Everybody is reminded these threads are “monitored” by the fed’s - and I very suspicious about how many are actually instigated by them as well.
But then again, if I were a liberal Muslim communist Wall Street occupier from Yemen, the fed’s would end up ignoring me anyway.