First, relax. I know exactly how you feel - excited about the car, trying to anticipate every need and prepare in advance for any eventuality. I'd refrain from purchasing more than the Tesla mobile charger which includes the J1772 adapter (or did when I got my car).
I think it's very likely that you will find the non Tesla charging systems unnecessary to you (ignore Canadian naysayers - those folks complain about everything but their freezing weather
) and you will be very thankful for that since many/most are slow, unreliable, inoperative, or name the failure and find it at a non Tesla charging station. They're a PITA most of the time for people in my area who need to use them (owners of other brands). I've got a friend who's had to drive 5 miles off his route only to find the needed charger closed when his charging app told him it was 24 hr.
The car can guide you directly to the nearest Tesla supercharger - as in plan your route place to place using a string of superchargers along your way or just show you your local choices (mine shows over 10 superchargers within 25 miles of my rural home but I'm across the country in southern Washington state.)
There's a supercharge map in the Tesla website. Go there and begin finding out what your situation will be as far as charging away from home.
Plan to charge at home - it's usually a lot less expensive