Rookie Historian is really excellent, I do rec it if you like that kind of thing!

When I say I enjoyed the fic for Sungkyunkwan Scandal what I mean is that I spent almost a week reading all the long Goo Yong-Ha/Moon Jae-Shin fics on ao3. (Sadly their counterparts in the Chinese version aren't as fun, but the originals are hard to live up to!)

Thanks for all these recs!