I just returned from an awesome safari in the Serengeti. I don't think I have ever seen so many Wildebeests and Zebras (tens of thousands, as far as the eye could see). Got lucky and saw plenty of cheetahs, lions, leopards etc.). I also went to Ngorongoro crater and while I enjoyed the landscape, I didn't find the crater as enticing from a wildlife perspective. The animals were too far away and I think I was just spoilt after being at the Serengeti. Some images below (all shot with the Nikon D850 and the Sigma 150-600 Sports lens).
Thanks for looking.