I was thinking about it for now I decided to give Brandenburg the Pomeranian province - there is no East Prussia yet.
Saxony ( northern Germany) was given to Danemark because it had a part of it and with the Swedish deployed there Danish would be really surroundered with Sweden from all directions.

I thought that Sweden, Finland, Livona and Estonia is god enough for now, however it is temporary solution.

I plan to add more provinces - Courland, East Prussia and most likely Swedish Pommern ( maybe called differently) to the Baltic Provinces as well as some other ones in different areas.