Xiang Long (2018)

Both shows feature a main trio consisting of two males and one female, all of whom are friends.

Both share the similarity of the two main male leads starting off on the wrong foot and then later becoming extremely close friends with lots of bromance. Both are originally based off of novels (Drama King based on a BL novel while XL is heavy bromance)

XL is darker and more serious than The Drama King, which is instead lighter and more comedic. XL is for an older audience while The Drama King is for younger audiences, but both have the same general feel to it, one is just more serious than the other.

In both shows, the female lead is a maid of the rich male lead and is completely faithful to him.

It just that the story, the set-up, and even the bromance reminds me of each other, just that if you want something short and full blown bromance then go watch Till Death Tear Us Apart..

similar bromance feel. there is also a war in the background. deals with opium too. and a group that has been powerful for generations have to deal with a newly formed group that wants to take power for themselves

similar bromance story with great chemistry between the two male leads
also both in republican era<<<<

Both are adapted from a BL novel but got changed to bromance in the making. This guarantees for Bromance at its best! The two male leads go from a cold relationship to becoming brothers for life (more extreme in Xiang Long were they are actually at each other's throats at the beginning.
If you liked one, I'd definitely recommend the other!
It's worth a watch!

If you loved Dylan Wang as Dao Ming Si, then you’ll love the character Xiang Long. They are very similar- entitled, temperamental, impulsive and childish but somehow they grow on you. Both lead roles start their relationship off with a tumultuous beginning that slowly warms up. XL is a bromance and focuses on the brotherhood that grows between the two LM. Whereas MG is a romance but has an established brotherhood.