The 30-06 is as good as anything, just get what you want. I like somewhat compact an easy to maneuver.
The reticle under low light ‘can’ be an issue, seen it mentioned for misses. I’ve never had a problem with at least a mid-quality scope. If it is the last 15 minutes of shooting light in the swamp, can get dark. One technique is to take the crosshairs off the black fur, then move it a ‘known amount’ back on.
For the most part that’s not required. I have seen some moved to lighted crosshairs over it though.
I mostly just assist with hunts now. If given the time, shooting at the base of the neck means no tracking required. Bears around the bait pile don’t like people trampling about looking for a wounded bear. One should be able to thread a needle at 25 yards.
The one year I dropped one in the pile, with a quite removal, the next guy shot a #400+ pounder on the same pile the next afternoon.