I used to run a safri camp in Botswana in the Okavango and was the forestry officer for Ngamiland for a couple of years so know the area pretty well. Okavango is the place to go for wildlife, go for a walking/dugout safari much better than any of the ones where you get driven around. Camp I used to run was called Oddballs its still going and is well worth considering not cheap but good value if that makes sense.
Let me know if you have any specific questions and I’ll try and help.
Stunning part of the world well worth going to.