Oh, hey new friend! So you're looking for new songs? :{D
Let me assist you with some of my personal favorites, love!
"In Heaven" - JYJ
"Hello & Goodbye" - MYNAME
"Goodbye" - RaNia
"In the End" - GDragon
"Every Night" - EXID

They might not exactly be the "slow" or "ballad" like songs like Jiyoung's, but they're still alright, I guess!
^____^