There are 32 Flyable for F4U Corsair (Including F2G-1 Super Corsair)
For Corsair, there's alot F4U-4s (also -4B model) are flyable than older and newer Corsair variants today and also probably only one F2G Super Corsair flying today (F2G-1 with Race Color). Likely there will be more Corsair to be restore and to be flyable soon after dug up from South American, North American, and somewhere Pacific boneyards.
All I know that WWII aircraft are flying today and that is:
Curtiss Hawk 75A-1 (Armee de I'Air aka French Air Force)
Lockheed P-38F Lighting (Glacier Girl, the oldest P-38 flying today)
Supermarine Seafire FR. 47 (Restore, probably Seafire flying today)
There's more WWII birds are flying today and some of them are current restoring right now as well like I heard about Heinkel He-111 been recovered from Norway lake (Including Ju88 also), Finland Buffalo been recovered from Big Kali Lake in the Russian republic of Karelia, etc etc many more!