Best:

  • Itaewon Class
  • dr. Romantic 2
  • Find Me in Your Memory
  • Live On

Worst (Actually I don't think any dramas are bad, but of course there were some dramas that I'm not too impressed with)

didn't I answer this already on another similar thread? 

Best - The World of the Married, My Dangerous Wife, Zombie Detective, Kingdom season 2

Worst - Graceful Friends, The School Nurse Files, Meow the Secret Boy (the cat was the only thing I enjoyed about it) Dinner Mate (they had the best main leads of the year and they managed to screw it up?) The King: Eternal Monarch (had high expectations for this one) Start Up 

Meh - Hospital Playlist & CLOY (dropped these halfway), IOTNBO (have only seen the first few eps) 

Best - Hot Stove League, The World of the Married, Birthcare Center

Worst - Rugal, Born Again, Alice