Here are my personal favorites:
Weeekly - After School
Such a fun, catchy song about hanging out with your girl friends. I've been listening to it nonstop and "I'm so good with you~" is stuck in my head. Their stage performances are fun too. Soeun caught my attention the most so far.
Golden Child - Round N Round
I like both tracks they promoted in this quarter, Burn It and Breathe, as well as companion song Cool Cool. But the sophisticated house track Round N Round is the one I enjoy the most.
SHINee - Attention
A laidback dance number perfect for winding down at night.
WayV - Action Figure
The best part of this song is the bridge. The vocal line with those harmonies in the background? Chef's kiss.
Brave Girls - Rollin'
Belated indeed! I've actually listened to the song way back then and thought it catchy, but I wasn't really into the voice in the chorus. After relistening I've now embraced it and I'm rollin' rollin' rollin' alongside Korea and its entire armed forces. Who doesn't love a miraculous underdog story?
Source: 1theK, Golden Child, SHINee, WayV, Mnet K-POP