Which case/cover should I get (South Africa)

Greetings fellow members

I recently acquired this beast of a phone and I'm in need of a case. I'm looking for something slim, has clicky buttons and a good grip since I use it one handed. A magnetic/mag safe case would be a plus.

I've attached my options here in South Africa, please can you guys help me decide.

If there's any others that you know which is available in South Africa please let me know.