I am looking for shows where the Older sister takes care of/ is affectionate towards her little brother. I loved My little brother and Shining Inheritance and now looking for more. 

  • Jealousy Incarnate
  • Uncontrollably Fond
  • The Princess Wei Young (her fake half brother)
  • Come and Hug Me (her adopted brother - they are close but he looks after her more)

These probably aren't what you're looking for, but these are dramas where the family relies on the FL, including her younger brother, or the FL tries to protect her family from danger, including her younger brother:

  • Sungkyunkwan Scandal
  • The Hymn of Death
  • About Time
  • The Rise of Phoenixes

Hi flower ( Sounds like what you're looking for)

Take my brother away ( brother takes care of sister) 

✔ Clean with a Passion 

✔ go go Waikiki