Reply 1988 (Park Bo Gum can give you what you want. :))
Love in the Moonlight (Again Park Bo Gum :))
Another Miss Oh (Both of the leads were aggressive (in a good way) when it comes to confessing and kissing)
Scarlet Heart Ryeo (female lead is initiative in that kiss that I remember, but in general male lead is insistent)
Radio Romance (Actually I don't remember how the kiss scene had happened, but I remember that male lead was always moving forward and his insistence had a charm, so you might find a good kiss)
Memories of Alhambra (Again don't remember, but there was a scene where Hyun Bin made all the viewers melt with just one word, so the kisses (or the kiss, I can't remember how many) are good as well)