Please recommend some hair products that are good for scalp odor!!

I've been double-shampooing because of the smell on my scalp, but now that it's summer, the odor is slowly creeping back in by the afternoon.

I think it's probably because I have oily skin. Even when I try shampoos that are supposed to be good, it's still like this...

Do you happen to know any hair products that are effective for scalp odor?