You basically have two choices for surgical method, strip and FUE transplantation. I think what you're actually asking is what's the best surgical strategy for a diffuse thinner - but your pics really don't look bad at all. Have you noticed shedding all of a sudden, or has your hair always had the same density and consistency? How old are you?
In any event, in my opinion, the best surgical strategy for any patient is a dense-packed megasession except in very rare cases. There is a lot of documented medical and anecdotal evidence that says so, but on top of that it makes logical and intuitive sense. Do not get fooled by any clinic that tries to sell you on the idea of "staying ahead of your hairloss" with multiple small, non-dense-packed sessions. You would be asking for a lifetime of misery.
In your case, though, I don't think it's wise for you to think about a transplant just yet. There are some doctors skilled enough to plant between existing hairs, but yours looks quite dense to me, and I think you would be risking shock loss. You should probably do some research on finasteride and decide if it's right for you, then maybe consult a dermatologist (if you are losing hair, and it's not in an male pattern baldness kind of fashion, you might have a different treatable problem).