Jobs requiring either a certificate or two-year degree

Physical therapist assistant
Occupational therapy assistant.
Library assistant
Medical assistant
CNAs
Hair stylist
Xray tech
Lab tech
Bank Tellers

Go to your local community college's website and check out their certificate programs and AS degrees. That way, not only will you get an idea of what is out there, you get what is local to you. Most community colleges constantly monitor in demand occupations for your area, so they are pretty on top of what is needed in your specific community. 

firefighter
paramedic

Medical coding

Paralegal

Pharmacy tech
Dental assistant
Administrative assistant
Welding
Electronics
Graphic design

Our local tech college has a great site with info on all of their programs. Many people come out of there making more than those with 4 year degrees.

Equipment operator ( bull dozers, back hoes etc )
Crane operator
The former needs a certificate and the latter needs the former plus additional training, none of which is at a university.

My sister was an equipment operator and she was pretty good at it.

Find out what a stenographer/court reporter needs. We have a real shortage of those in my neck of the woods, although maybe my advice should also include "see if your state needs any of them."

This can be state dependent but many states you can be an alcohol and drug abuse counselor at a 2 year or certificate level. You are to a therapist, but a counselor yet even those words depend on state laws.

Computer technician..network, software...programmer...lots of jobs in these areas too.

specially hardware.. data centers are not going to be moved overseas

HVAC Tech and Plumber. There is good money in both.

Bookkeeper -accounting clerk
Fleet manager
Truck driver -CDL
ITIL
RN can have Associates degree
CNA

Looking at a community college offerings can help, but often they will give you an associates degree even if you can't actually get hired in the field with that degree. also make sure you understand which degrees require pre-reqs that lengthen the time it takes to get the degree. For example, my husband earns a good living as a PT assistant with an associates degree, but that degree took four years of college work to get. There were nearly two years of pre-reqs to get into the program. I would be very wary of ones that don't have those. I know a guy who went to one of those for profit colleges to be a PTA. He took the licensing exam five times and still couldn't pass it.

Teach the kids that it's not just about choosing a career and finding a college that teaches. With vocations that don't require a lot of post secondary education, it seems where you go to college matters a lot more than it does with traditional bachelor degree and higher jobs. Tell them to ask about accreditation and make sure the accrediting institution is a real thing that is respected in the industry. also ask about percentage of graduates hired in their field and percentage that pass the licensing exam on the first or second try.

Welding. And keep taking classes.

Underwater welding. A friend's brother worked 3 months out of the year. He owns outright hunting camps in Montana and Alaska. And a huge boat for fishing when he is not hunting.