Bouldering if that counts. If not, then incline dumbell bench press. It's definitely my favorite exercise, probably followed by pullovers or flat dumbbell bench.
It could be anything as long as it’s intense enough to leave me wiped out. Ideally, it’s at least three times a week, but must be twice at a minimum, or the brain demons will get me
planking/push-ups, and some curls.. just a little bit every day or so.. but i've kept at it pretty well for a couple of years now and it's really paying off both physically and mentally..