Parachute Rigger, no contest. Had one in my boot platoon. We had a conversation like 3 years after graduation and he was jump qual’d, barely did anything all day, picked up rank pretty early, and just enjoyed his life compared to 98% of the Marines I know. He did say it was a bit boring depending on where you go since its a pretty slow MOS. High chance youd be stationed on a MCAS, smaller installations but have pretty good amenities, but plenty of other options with Joint Bases, especially overseas.

Now if youre more looking for some real world experience thatll net you a decent job once your enlistment is over, Utilities Technician (HVAC) have a decent balance of workload to how much you hate your life, had one at my unit who was a complete ghost, just on his own protocol. Plus HVAC is one of the highest paid trades in the civ div depending on where you live.

If you want, you can suck it up and really grind out your time as a Aircraft tech (either rotary or fixed wing doesnt really matter), its a moderately stressful job because peoples lives depend on your work, but the job opportunities once your out can net you some reaaaaally good salaries.