I don't know if you have regular cable in addition to league pass, and it's been years since I ever had league pass, but consider national tv games. Years ago when I had league pass, national tv games were blacked out on league pass.
National tv games:
Celtics – 3 games
Bulls – 24 games
Thunder – 24 games
Miami – 25 games
T-Wolves – 5 games
Warriors – 17 games
Nets – 17 games
Pistons – 2 games
Clippers – 21 games
(And those numbers don’t count NBA TV which you may already get depending your cable situation).
So if you picked the Heat, you’d only be getting 57 games, where if you picked the Pistons you’d be getting 80 games, but both would cost you the same.
With the best teams, like the Bulls, Thunder, Nets, Heat, etc. like 95% of the good games will probably be on national tv anyway. You won’t be watching Nets vs Heat on League Pass, those are all on TNT/ESPN. Every single game Miami plays against Brooklyn, New York, Chicago, San Antonio, OKC, LAC, LAL is on national tv, every single one. If you picked Miami, you’d get one Miami/Pacers game and one Miami/Houston game on LP, those would likely be the only 2 good games, and both will probably be on NBA TV anyways (if you already get that channel). Most of the time you’ll be watching Miami vs Charlotte or Philly or Phoenix, etc.
Also consider your schedule. What time do you go to bed? If you’re in bed by 11pm, you might miss the 2nd half of a lot of LAC and Warriors games. On the other hand, if you picked all East Coast teams, you’ll have a lot of times when you have 5 games on at once on a Wednesday night all starting at 7:30pm. Maybe pick 2 East Coast teams, 2 Central teams, 1 West Coast team. It could help spread things out for you if they’re all playing at home on the same day (which will be a lot of Wednesday and Friday nights).
Now some of these teams I’m not really interested in watching but if I were you based on your list, I might go with:
Celtics (obviously)
Nets (to see our boys play regularly still).
Pistons (most bang for your buck with 80 games on LP)
T-Wolves (most bang for your buck with 77 games on LP)
Warriors (because you get more Clippers games on national tv).
Spreads out the time zones a little (though you'd still have 3 EST teams), and gives you the most bang for your buck.