Hmm... Should I get into dumb VR games like BeatSaber? I want to do something that feels like intense fighting. Biking fast enough it's satisfying is too dangerous. Maybe unrealistic point based karate would be fun. I tried fencing once but it was shockingly lame. I'd join a dodgeball league but there aren't any, everyone wants to do like baseball and volleyball. Hmmmm. I wonder if paintball would be fun or tedious, I could see it going either way.
Not finding a huge amount of consistency in the options you're considering OP. Is it the adrenaline and the heart pumping you're looking for? I suggest trying anything close and convenient and affordable to try out. I think all of these can go either the fun or tedious route depending on the day and other circumstances. Btw. You are highly unlikely to get concussed learning martial arts if you don't compete. Maybe exceptions for hyper-masculine MMA and thai kickboxing joints.
Bout the most predictable is VR which is pretty reliable but I cannot in good conscience suggest it to a comrade in lieu of literally any other physical and/or social activity. Actually VR fishing with friends is fucking cool.
Personally I like riding an electric skateboard. With leathers, pads and a helmet. a- actually, I look cool as fuck and not at all lame.
I want the "aaah I'm about to die if I stop instantly instinctively reacting to what's happening" feeling for like an uninterrupted minute at least. Eskateboards sound fun but too dangerous to go satisfyingly fast on.
Yeah I'm wracking my brain because I love flow state activities and I think I need to find one too. There's a local indoor gel blaster field near me I'm thinking about again now. I feel like paintball has a better incentive to not get shot, but then it also feels like a slower game (outside of speedball.)