Best hair cut for me (diffuse thinning)

[powerofthepower]

Hello!
I have thin hair on top, probably diffuse thinning on scalp. I wonder what suits me the best? I have heart/diamond face shape, and want to give a more masculine broad face look, but dont know how. Also want to have the best for my thinning hair (look at the picture for see).

This options:
1. Buzz cut.
2. a bit shorter than I have now.
3. Have what I have now.
4. Have longer (I have curly, almost get jewfro when hair is long).

What do you think is the best alternative for me? No idea how I will look in buzz cut.

Diffuse thin on my scalp:


My hair style right now:


Face shape visible:


The shortest hair style i ever had: