Kenya is still the easiest place to start a safari. You fly overnight direct to Nairobi, hop to the Masai Mara in about an hour and are on a game drive by lunchtime. The Mara has high numbers of lion, leopard and cheetah, and from July to October the Great Migration arrives from the Serengeti.
What matters most is where you stay. The private conservancies bordering the reserve, such as Mara North, Olare Motorogi and Naboisho, limit vehicles and allow walking and night drives. We pair them with Laikipia, where rhinos, Grevy's zebra and wide views under Mount Kenya make a good contrast, then finish on the coast.
The honest caveat: the main reserve can be crowded at river crossings in August, and roads in and out are rough, so we fly between areas.