Recommendations

Both are Taiwanese BL
Relationship between stepbros
Older brother
More than family
A touching story of love and brotherhood
Not just cousins
Challenge to try not loving each other
End with a happy relationships

First of all, they have the same screen writer which explained why the flow of the story in the drama version was adapted in similar way.

Aside from that, both stories are started with two childhood friends who haven’t been with each other for a long time met again and sharing home.

Perfect Propose and Living with Him are different, but they are both providing cozy and comfortable love story about two people living under the same roof taking care of each other and figuring out their more than friends feeling.

Both dramas feature son traveling back in time to when his parents were young and changing the past to make his mother's future happier. Both also feature the mothers best friend and the son to have a close connection

Toxic mother, non blood related brother turning into love interest ....,........................................................

Both are Republican Era mini dramas centered around the FL marrying into the ML's family under a false identity despite having a past romance with him. The ML is torn between his hatred for her perceived betrayal and his continuing love for her.

Both are Republican Era mini dramas centered around the FL's revenge, with a connection between the leads and the FL having an identifiable scar.

Both are Republican Era mini dramas with a love/hate relationship between the leads (PL is far more extreme, though) and a past connection between them.

Both are historical mini dramas in which the FL has knowledge of the future (by magically seeing it vs. rebirth) that makes her believe the ML will destroy her and her family. Despite this, she ends up marrying him and discovers not all is as it appears.

The ML will fall into a coma, and the FL who wrote the story of the ML who is a character in his book, will enter the space time of his Novel to be able to save him and change his destiny

- FL jumps back and forward in time trying to save ML, who died in the present day, thanks to a device that somehiw has a connection with him.

Both drama is VERY similar
-Both has smart FL and ML
-Both involves women doing business were women didn't have much control
-Both involves having food business
-Both has GOOD communication between FL and ML

- Mind games
- classmates who doesn't care about each other
- bullying, suicide, mystery
- in pyramid game the student stopped the system and in 3 nen a gumi the teacher teaches them lesson
- isolated classroom
- thriller

- Strong FLs that are a force to be reckoned with (smart and brave)
- Both FLs pretend(ed) to be men and behave in unconventional ways (tomboys)
- Both FLs are high ranking individuals (in MUD FL is a ruler while in OMG she's a general)
- Actually funny comedy and quite a lot of it
- MLs are royals/noblemen very focused on their looks (and with a temper)
- Loving ML who supports FL through anything
- Lead couple have a rocky start but end up being a perfectly matched power couple
- Gender role reversal (in MUD it's more subtle than in OMG)
- Sisterhood
- Both FLs have a woman who's in love with her male persona

Oh My General balances comedy with its more serious tone while My Uncanny Destiny is mostly a comedy with some serious moments.

Blue birthday is a shorter web drama but thats also similar
There the FL tries to save the ML in the school days and has come from the future just like in Lovely Runner

The vibes in both dramas were similar. Remote (spooky) villages, abandoned forests, interesting side plots and folktales with supernatural elements