Choosing a topic

I’ve been wanting to start my Common app essay for a while now and it is only recently that I’ve started really looking into the subject. I seem to lack ideas however I do have a few topics that could be interesting.

1 : I'm a French international student that has moved countries every 3 years and I think talking about my life as an expat could be interesting

2 I live in West Africa at the moment and talking about what surrounds me could also be a topic (seems a bit cliche )

3 I could also talk about a traumatic event (dad's heart attack) where I was the one who had to call an ambulance, shield my little sister from the horrid sight... A story that showcases my personnality

None of the topics are truly outsanding but I need to choose one and could truly benefit from all the advice/help you can give me
Thank you in advance