Most tVN dramas from Korea are shot well and mostly have good cinematography. I would recommend, Goblin and Chicago Typewriter - I find them very similar in a way, so try not to watch them in succession. I recommend Goblin all the time even just for the cinematography and the way it's filmed.
Another I recommend is On the Way to the Airport, but idk if most people will like the premise.
I second Scarlet Heart Ryeo - but you either love it or hate it. One thing to notice is how they film the face close-ups.
For movies, definitely try Wong Kar-Wai's In the Mood for Love.