Annyeong chingus!

Help me adjust again. I'm the owner of paulamariehenslow (which I got locked out of, hence, this new account) and pmhenslow42, and as you guys will see if you check out the last time I logged in on the former is 2016. I kind of laid low for more than a year from the K-Pop scene (wow, I'm making it sound as if I'm an idol) and now I don't recognize the new groups. The last one I listened to was NCT, which debuted on 2016 as far as I can remember. I also know MOBB because I'm a huge Bobby and Mino fan. I've always been proud because I listen to everything and I always try to discover new artists and songs to listen to. But because I went on a hiatus (wow, I really am trying to act as if I'm an idol LOL!) and just became active again, I'm pretty much lost. I'm not sure who's big right now (I know BTS blew up big time since I can hear them almost EVERYWHERE I go), which groups debuted, or which groups disbanded. I don't know who to listen to so I started by going back to the old groups that I stan-ed for years now. Currently, I'm addicted to Monsta X (again) and GOT7 (when was I never?) so I've been watching videos of them every single day to make up for the time that I "paused" in supporting them. I also found out about Astro and I think I just fell in love with Rocky (who wouldn't?). Still, I feel like there are people I'm missing out on. Help out a friend here, please. Can you comment your favourite groups, your favourite songs, your biases, etc etc? Also, which shows should I watch?