My favorite group is Momoland, I think I like every single song they have made uwu. Besides them, I also like to listen to Twice (first K-pop artists I have listened to), Crayon Pop (I think they are dead atm, but they have made amazing songs), HyunA, BTS and LOO / ODD EYE CIRCLE.
There are so many amazing groups and it's a cool feeling to dive into a whole new genre of music, because everything is new to you.
I have also started learning Korean recently *KOREABOO INTENSIFIES*