Chungha x Lenstown
Yoona x Innisfree (used to be)
Wonyoung x Innisfree (currently)
MonstaX x Tony Moly (used to be)
Aespa x Clubclio
Soojin x PeriPera (used to be)
Lisa x Moonshot (used to be, don't know about now)
Lee Min Ho used to be with Innisfree also, if i'm correct
BTS x VTcosmetic (BT21 line, used to be)
there is a lot more but I just can't remember at the moment