Also, what are your interests? There are jobs for basically everything in all branches, but not in every branch (for instance, there are no "tank crew" jobs in the Navy or Air Force). It would also be good to know what you're interested in, can *maybe* give some insight.
I was actually already a bit interested in Crytological Tech and Intelligence. But also interested in Military Police/Master at Arms, Electronics, Medical, etc. I try to be flexible.
"I try to be flexible" -> Do not be flexible, with a 96 ASVAB score you can literally get any technical job you want.
MA and HM are going to be worthwhile if you specifically want to work on a police force or do routine nursing/medical records administration tasks at clinics/hospitals when you get out.
CT, IS and even IT can get you a lot more "bang for your buck", so to speak, though. The promotion opportunities are going to be much higher on average, and post-service employment opportunities will be more lucrative by default (excluding any educational goals you accomplish when you're in).
Also keep in mind that you do get college credits in your career field, so if you want to work with computers when you get out, but you go MA, you're gonna have credits dealing mostly with criminal justice and administration, which means you have more catch up to do to get a computer-related degree.
I'm not saying you're gonna get a million credits, but I mean it can be the matter of several classes.
Especially never go undesignated, no matter what you choose.
Yeah. I'd heard not to go undesignated. Seems like it would be a waste of a high asvab score. ---