Reloader 15 would be my first choice, and the charge weights will be almost the same as Varget.
RL-15 is excellent for 150 through 168 grain bullets.
H-4895 or IMR-4895 are also excellent for 150-gr and 155-gr bullets, and especially in gas operated rifles.
W-748 is Old Original for the NATO loads.
H-380 is just a tad slower than Varget, about like N-140 and RL-15.
H-4350 is still slower, on par with N-150, so would be better for the 165-gr bullets.