As for active nations for those who like activity ... could you please look into Baltusia, Solentia, Lodamun, Rutania, and/or Lourenne? (Or Aloria, but Aloria's full at the moment.)
Any of these five-six nations would both be very active, and would also be much more fun for you than Kirlawa, please.
However, please be advised that Lourenne is one of the nations whose economy stats and budget and such are bugged / broken, if that matters to you. All of the others are fine.