So, I'm looking for a career change since I'm probably going to move to a city of approx 200K people. What's something that everyone needs either it's simple or more complex?
Not interested in funeral services 😛
If you're willing to deal with the later costs on your body, learn a trade.
Plumber, electrician, HVAC. Everyone needs something serviced, it's just getting your name out/getting with a good company. Bonus, these things can follow you anywhere. Big city to small townships.
Welding is another solid one. Good welders can be in high demand.
Again, be forewarned, take care of yourself now, and be ready for it to catch up with you down the line. It's rough on your body.
Came here to say electrician. Or anything related to utility (gas, electric, water, Internet, transportation) maintenance. These are often "we need someone 365 days a year" jobs, because they are literally the ones maintaining infrastructure for the rest of us, but those jobs also pay well and are in demand everywhere there are people.
If you're not qualified for that stuff, consider starting with something like Flagging/traffic control. You'll start as the poor sap holding a sign in the rain, but you can study and eventually become the person who designs/approves the traffic control plans, etc etc. Pretty much all utility work requires traffic control.
Surveying/Right of Way/GIS, if you'd rather work in a cube
Basic human needs,
Food, water, shelter. Go into any of these and you should be good.
Long term needs would add healthcare, education.
Does the city of $200K have advertisements for city jobs? Rather than trying to be universally employable, maybe cater to where you actually are/will be?
Like my grandmother used to say, there will always be a need for teachers and medical professionals.
Not promising either are easy to attain or will pay well though, much less have good working conditions.
Good luck!
I don't know if he's making good money or anything but in my town of around 100k there is one guy who is a bit of a jack of all trades (and to me it seems he could be a master as well, but I wouldn't know). He does stuff like copying keys, leatherwork, sharpening knives and so on. This is the guy you go to if you need some more obscure thing done. Might be something for you if you like that sort of stuff.
