These are just my opinion! No offence, and it would be nice of you to suggest me more fics~

Exo:

Guardian of an Obnoxious by BaboPanda (Kai/OC/Luhan) On-going

- I absolutely love this fic and how it was written. The plot seems interesting, since I've never read one like this before. The character and the humor was just right. LOVE it~

Lie For Two by shainiak (Baekhyun/OC/Kai) On-going

- This fic is just plain beautiful. I love how the distance between the two close up so fast.

EXO's New Member is a GIRL?! by Yijiko (Exo-K/OC) On-going

- I don't know what else to say but just...LOVED IT! The beginning was kinda dull, but I manage to keep reading and found out how awesome it was.

You're My What? by JJandVV (Luhan/OC) Complete

- I actually only read the begin, the later chapter didn't really hook me anymore. BUt if you want to try it out, you should~

The Ice Princess and The Coldhearted Prince by XBaekhyunMinX (Luhan/Yuri) On-going

- This book feature Luhan and Yuri from SNSD. Even though you might not like fic that aren't OC's, but the author of this fic still use the 'you' POV. The grammar wasn't good, but the plot is.

My Perfectly y Boyfriend by Navita (Baekhyun/OC) On-going

- I have to admit I don't remember how the story goes, but skim it over again, I think this fic is really good! 

BAP:

Devil Vs Angel by KakashiFreak (Daehyun/OC/Youngjae) On-going

- To be honest, I finish reading all the available chapters just now, and it was sooooo good! I'd recommend it to any Babyz out there!!!

The Anatomy of Jung Daehyun by dhuizhangpanda (Daehyun/OC) On-going

- This is my first ever Bap's fic I've read. I LOVE IT SO ING BAD!!!!!!!!!!!! I'm waiting for forever so she could update it. 

Bangtan Boys/BTS:

Jungkook's FAKE Girlfriend by Myungee (Jungkook/OC) On-going

- This is the first BTS fic I've ever read, and it was soo good!

Mix Group:

Battlefield of Cinderella by dbskgirl4ever (LJoe/OC/TeenTop/Zea/Infinite)

- I remember myself enjoying this fic sooooo bad. Imma go read it again. And yes, I personally recommend all of dbskgirl4ever's fics. She is pro at this!!

Again, just MINE personal liking! I didn't put all of them on here, because if i did, it would be endless....! I hope you enjoyed this~ I'll add more when I remember it! BYE~