Not sure if you were looking only for indoor hobbies, but I picked up Kiteboarding recently, and it is the most outrageously fun thing I've ever done.
It's like being a kid and jumping off the house with a bedsheet, except it works. Most mistakes are laughed off by splashing in the water. I'm 3 years in and I can jump 7-10m then fly like a bird for 5-10 seconds without consequences.
Even as a beginner, sailing around or just feeling a kite pull you around is such a blast. Keep in mind it's really difficult and pretty much requires 10-20 hours of private lessons.
Really fun! I used to do it too, and I miss it.
How do you combine it with work? Where I live in NL, there are few days where I’m able to go kiteboarding and I probably won’t know until the day off if it’s possible or not.
Very hard to schedule!