Recommendations

If you're interested in Park Gyu Young in another romantic lead , with a different flavor to Fall in Love, I recommend Dali & the Cocky Prince. Quirky and fresh, her character was softer, with more frills... And you get to see her range.

Both MLs are depressed and at the lowest part of their lives when they encounter the FL who they view as their salvation. Both MLs become stalkers, finding ways to get close to the FL, with her having no knowledge of their shared past/former meeting.

Literally the same story! I think they stole the story. Both are about people who accidentally time travel to the same old era in the past. They both have to adapt to their life in the past and they fall in love with the hot guy who works for them. Both from a royal family and a forbidden BL romance. Both have a comedic ML and there's funny moments.

The 2nd couple is similar (2nd ML: Stoic, 2nd FML: a little sunshine) -- The 2nd ML keeps denying it at first and see himself not worthy for her

Both os these BL dramas are almost practically the same. I will say Make it Right has less of the 'ashamed to admit to being gay' theme to it that saturated Love Sick, but I liked the plot of Love Sick more as it felt more reality based while MIR felt more like a drama.

Romcoms.
Main character has memory loss, and is falsely told that they're married and a parent by other MC for selfish reasons. Leads then live with eachother under these pretenses.
When the truth comes out, all is forgiven.

Both Eternal Yesterday and Contrast are serious Japanese BLs where the popular guy is drawn to the loner.

Similar healing story the leads have a past and overcome to get close together. The side stories are well tied together and deep. The leads are cute and the female lead does have difficulty opening up. The male lead is same puppy like only the setting is in a small town in when the weather is fine.

The photography and direction are wonderful, which is what they have in common, as well as having a deep and well-told story. I think anyone who has seen one of these series can't help but love them both. I recommend watching both.

set in the same time period, from when the siblings were sent as royal hostages to hongsawadi during the ayutthaya–hongsawadi conflicts to when ayutthaya was liberated. 'Chom Chai Ayothaya' tells the story of princess suphankanlaya, and 'The Last Duel' follows king nares.

Both ML are spys who uncovers drug mafia and both ML's fiance dies at the beginning of the drama. I liked Never say goodbye more.

Wuxia driven plot with a lead poisoned and went a quest together. Both driven, cunning and manipulating each other until they both fell in love, but the scheming continues with a lot of angst. No special effects overdone. Well written plot and characters. Great acting! Not famous ?ctors but very watchable and well done.

The K-drama Night Traveler is an adaptation of the Chinese drama Night Wanderer. It follows the same core story about a man from the past who travels to the present at night and forms a relationship with a modern woman.

Both dramas share the same concept of time-crossing romance, where the characters meet in the same space but belong to different eras. The main characters in each version are similar in personality, with the male lead being calm and principled from the past, and the female lead being intelligent and independent in the present.

While Night Wanderer is set in 1937 Shanghai and modern-day China, Night Traveler adapts the setting to Korea and changes cultural details to fit a Korean audience.

Overall, Night Traveler tells the same story as Night Wanderer, but with a different cast, setting, and localized elements.

They share the same universe which the stories are connected, and some characters you’ve seen before appear again in a more central role but with different cast, giving you a deeper look into their lives. It feels like you’re exploring another side of the same world, making the experience more exciting and meaningful as everything ties together.

Both are about facing life's hardships, meeting a loving partner, and healing each other. Plus, they're both dramas from the same writer.