Fox Farm Ocean Forest or Roots Organic 707.
I use both and mix in 10% perilte for better aeration and drainage, and 5-10% worm casting for plant health, 1 TBSP of dolomite lime per gallon of soil for pH stabilization and cal-mag issues.
But right out of the bag is just fine. But your starter pots you should use something like Fox Farm Light Warrior, good safe seed and clone starter.