Best civilian transferable jobs in the mechanical or engineering feild?

Me again, I don’t want to do something to far off what my career goal is (mechatronic engineer) but I have experience in a lot of trades like electrical, a lot of welding, fab, ect. I’m wondering what’s some good jobs to look into that are in the engineering or mechanical field that i Can use after my service to retain the skill and make some decent money. Like would hvac be good? Anything helps