Arranged/forced marriage turns into true love. ML has some problem only the FL discovers and is able to cure.

Similar vibes and relationship between the main characters. Both shows start off sweet and funny then take a turn into heavier court politics and assassination attempts, with a final happy ending.

Similar tone and setting and romance. The emotional sacrifice scene in part 2 of The Blue Whisper parallels the scene in Ashes of Love. Both are beautiful, fantasy/historical cdramas with interesting, complex characters.

Historical Chinese dramas with a poisoned ML who has lost something because of it (his emotions or intelligence). The FL is able to cure/help him.

FL has another, dangerous identity that people believe can destroy the world. The ML is determined to protect and save her at all costs. Both are historical/fantasy Chinese dramas.

FL has another identity hidden in her that people fear. ML tries to protect the FL. Both couples have an unusual relationship of master/teacher or master/servant with an age gap between them. Fantasy/historical setting with many supporting characters.

Similar length, historical/fantasy setting, both are Chinese dramas. The main couple's relationship grows slower. Both ML's sacrifice a lot (and their hair turns white) to save the dying FL, then leave. Both FLs eventually find them again at the end.

Both are Korean dramas with a FL who can see ghosts and a ML who can help them in some way with their power.

Shorter Korean dramas with a ghost seeing FL and supportive ML.
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Korean dramas about a lead who can see ghost(s). The plots deal with closure and moving through grief.

Both are cozy, short, romantic Korean dramas about a love story between characters who've known each other for years, with one secretly in love with the other.

A group of people solving mysteries in a historical setting. Mix of drama and humor with a sweet feel.