Hi guys , thanks a lot for your answers !
Indeed loved the Reply series as well, brilliant narration, sharp sense of humor, little elements that make it feel like it's lively and relatable... I might actually rewatch it pretty soon !
Loved Fight for My Way and Secret Garden (one of my most rewatched <3), never got too much into I Head Your Voice despise eye candy Lee Jong Suk
From your recommendations I added My first first love, Koi wa tsuzuku yo doko made mo backstreet rookie (indeed Chang Wook is a good argument lol) and Put Your Head On My Shoulder but still open to more recs
I started Hit the top yesterday super cute