You might want to look at this thread. A lot of it is personal preference and how much weight are you willing to carry. There is also the quick clip magnetic things from Wiser for your trekking poles.
I have a fairly light weight folding stool that I keep strapped to my backpack for walking into new areas and doing a sit. Longer ranges or tall grass, I take the backpack off, set up the stool and put the backpack on the stool. Plop my butt on the ground and I have a portable bench.
I Second the wiser trekking pole device. They just clip on to your poles and tighten. They lock in two different directions resulting in two angles. One leaving the poles perpendicular and the other in a tight x that make an easy shooting platform your stock should sit in quite nice. I like that you don't have to add extra gear and multipurpose something you already have if you use them. It also makes for a nice way to store your poles.
I've got some really nice tripods and they're all fantastic, but one time in Colorado the spot I was sitting just didn't work with what I had, so I gathered some limbs and lashed them together as a tripod that works from a really low stance to a very high one as long as you're sitting. It is not fancy, rudimentary at best, but I took a whitetail at well over 600 yards with it, and it is super lite. The idea came from watching African safaris and most of those professional hunters use a similar device from the standing position. I figured if they could shoot all the critters there that can kill a man in an instant, deer and elk shouldn't be a big deal. Just an idea
I have a pair of Walmart's BOG-POD SHOOTING STICKS SITTING. They are very light, very quick to deploy from a sheath on your belt. and if you're limber, you can bend a knee and rest the butt of the rifle on top of your knee. I can shoot almost as well as off of a bench. You don't need (and probably don't want to carry) 1/2" thick tubes to hold the front of an 8 lb. rifle. These came with a sheath that only covers the top, I'd look for a model that has a full sheath. They also make a tripod version, which is steadier, but takes longer to deploy.
I love hiking sticks, but in rocky country, I find it impossible to walk quietly with them. If they're in your pack, it would take too long to deploy them for a quick shot.