These would be nice ...
Dassault-Dornier Alpha Jet (high wing 1970s military jet)
Henschel HS123 (WWII German military bi-plane)
McDonnell Douglas F-4 Phantom jet (low wing 1960s military jet)
p.s. my current favourites are
(BAE) Hawk (with Red Arrows repaint)
DFS Reiher III
Bf109E
Calmato EP 1400