Recommendations

Both dramas has a striking similarity to each other. The ML are both professors to the FL. They both enter an arrange marriage/ marriage out of convenience. And the way they both slowly warm up to each was similar too. I had read the book 'Perfect and Casual' was adapted from before the drama aired and found that this drama (CEO's arrange bride) had more similarity with the book plot than its own drama did. (just slight differences here and there).
That said, its been a minute since i read and watch 'perfect and casua'l so my memory could be rigged a little. (sigh... im getting old...)

Both involving Cult thriller/ suspense by which even the cover theme is the same blue vibe. However Eerie has a better disposition angle and drection

Same director, same actors, soundtracks are both just as memorable, and a couple of characters from Not Me can be likened to characters in Burnout Syndrome.

LGBTQ+ themes
Action
Great Chemistry
Debts

There aren't any plot similarities between the two dramas, but if you like the obsessive and yearning ML paired with the calmer and more level headed ML dynamic, you will love both BLs. Both dramas are masterpieces, but Secret Lover won't give you nearly as much trauma as To My Shore lol.

The characters in both dramas exist in some sort of professional industry (acting vs sports). Basketball is a point of connection for the main couples. Both dramas are lighthearted and easy to binge in one sitting.

Match Play seems a bit more low-budget, but it's still as cute and fun to watch as Ball Boy Tactics.

A "boring" older male-lead and a free spirited, younger, photographer female-lead in a marriage of convenience. Showing a mature romance involving complex character with their own baggage. The cinematography and pacing also gave a similar feel.

Both has revenge plot and some action.
FLs approach MLs with motive/ purpose.
In both series FL and ML team up somewhere
In both series MLs first seem bad but actually they are not.

- Both are are fantasy romance dramas
- Both have strong female leads with secret/hidden power
- both male leads are a bit clueless at the beginning but become powerful
- Slow-burn, emotional love stories
- training and battles
- Past-life connections

Both movies are teen heart feel romances about young people falling in love for the first time, learning about themselves and facing emotional growth. Even though one leans on the dramatic side and the other starts mor comedic, they both capture the awkward and emotional journey of youth.

These were both written by the same scriptwriter and involve societal commentary on a range of topics relevant to modern day Korea. Both MLs are judges who learn how to make true friends over the course of the series.

Both of these shows dig deep into the Korean idol industry corruption and the negatives of fame, while showing the human side of celebrities. They both also contain the core message that it's never too late to develop the relationships that you really want in your life and to follow the dreams you've long held.

The worlds feel similar, and both make you reflect on your own life / have a moral underlying story they are telling. Also they both unrelatedly revolve around sweets.

The similar premise. A labor attorney seeks justice for ghosts who died at work and it was cover up etc...

BOTH Have:
# Traumatized Leads
# Oh Yeon Seo playing the Female Lead
# Rough Manly male lead
#Adult Romcoms /Dramedies
#Lighthearted, with some dramatic parts
# Healing romance