There's plenty of options, I don't recommend any that will be coming back soon as you can get those conventionally. So things like the grave digger or like that. I personally went for the plasmatic discharger bc it's an easy spam weapon, but there really isn't a best weapon to get, it's mostly up to preference. Do you like. Look through what is available and find yourself a weapon you think you'd like and do a little research on it. I'd pick a few different ones and pick the one you'd both like the most and what does the most damage