While I have hunted buffalo many times, if I were looking at hunting in South Africa, I would seriously consider
@TSALA HUNTING SAFARIS and
@GAME 4 AFRICA SAFARIS. These 2 outfits are first class. Tsala is a short 2 hour drive from the airport in JNB, Game 4 Africa is an additional flight from JNB over to Port Elizabeth.
If I were hunting in Zimbabwe I would consider
@TSALA HUNTING SAFARIS or Dalton and York.
For both Tsala and Game 4 Africa, they both have self-sustaining herds, Tsala has some truly huge buffalo. They are close to Bela Bela so the wife and kids could do into town for shopping/spa, day trips, etc.
Having said all of this, there are many other truly find outfitters that others here have hunted with. Sorting out who to hunt with is half the fun of taking a trip!!
Good luck to you, Sir!!