What pore care products should I buy?

I'm looking to buy cosmetics that are good for pores,
There are so many types, from pore ampoules, serums, creams, oils, and even pads..
I want to remove sebum from my pores and tighten them.
Please give me some recommendations on which one would be good.
Just so you know, I'm planning to go to Olive Young to buy it~!
But I don't know which one is good.
I would be grateful if you could give me a recommendation!

source: Concerns here