IL-2 Sturmovik: Battle of Stalingrad is a highly rated WW2 flight sim for PC.
Succinctly described as better than Warthunder and easier than DCS :)
You get 8 planes.
German: bf109 (F and G variants) fighter, Ju 87 Stuka dive bomber, He 111 bomber.
Soviet: LAGG-3 and Yak-1 fighters, IL-2 ground attack, PE-2 bomber.
If you buy the deluxe edition (also 85% off for $17.24), you get two extra planes: German fw190 and Soviet La-5 fighters.