Guard first, then reserve in that order although it may be easier to get into the reserve depending on location.
Guard prefers local boys/girls, so in-state is the best place to start.
If you can't get a part time gig but don't want to do fighters, I would skip AD entirely and just go the airline route ( you can keep trying for guard/reserve until about age 30 while you build airline experience and seniority). The hiring opportunities right now are great and getting better but you might well be on the back side of that curve by the time you finish school and an AD service obligation.