High Society is not that dark and heavy in melodrama and has a great couple in park hyungshik and lim jiyeon... but the Sung Joon and UEE story is super balnd and uninteresting, and they are actually the main couple by a little bit between the two.
ugly alert is a must watch, its pretty long but it is all worth it. And its 20 minute drama, so its actually just half the episode count
Ojakgyu brother is trully a must watch
Other redommendations: descendants of the Sun, plus nine boys, Gentleman'S Dignity, Father is Strange, Five children, all about my mom, Goblin, reply 1994, a thousand kisses, bad couple, across the ocean to see you, protect the boss, one more happy ending