Though I would be more likely to use available "Latin" spellings for a lot of the names you've listed (e.g.
Katarina &
Felix), I like:
Vilhelmine
SybillaFrejaKatariinaEleonora&
JohannesLeifNiklausGunnarFeliksEdmundSven
Please rate my personal short name lists (the latter includes combos):
www.behindthename.com/pnl/69381www.behindthename.com/pnl/69381/91835 (updated)
http://greens-end.myminicity.com/