Both are fantasy dramas with story taking over multiple arcs / periods, so look forward to gorgeous costumes!
Both are healing dramas with the same actress as FL. Bloom Life takes place in Xianjiang, with a focus on ethnic minority lifestyle, Take a Nap has a fantasy setting in a remote island.
Both has the same actress as FL in an older woman / younger man romance. Sunshine by My Side is a drama with Xiao Zhan as ML, Summer Never Ends is a movie with Jun as ML.
In both dramas the FL's sister dies and leaves behind a child. And the FL marries with the widowed husband who is the ML. Also, both dramas take place in Ming Dynasty.
Both dramas have the same main leads and director, taking place in Republican Era, and solving mysteries taken from Agatha Christie books.
Both are reverse harem dramas with a cold and calculating FL and a scheming but devoted ML, also including some investigation.
Both dramas have a calm strong FL, played by the same actress, and a mature ML leading a group of warriors gathered for a purpose with great bromance between them.
Both dramas have bold FLs protecting the balance between the demons and the human world, and reserved but devoted MLs who are officials. The ML in You Have My Heart was also in Moonlit Reunion.
Both are fantasy dramas with a strong flirty FL and a reserved ML who becomes very devoted. Both MLs also have the same voice actor.
Both dramas are about warm youthful friendships with fun wholesome characters. When We Were Young is about high schoolers in the 90s, Be with You is a martial arts costume drama.
Both dramas have sismance with the same actress. In The Glory, she is FL's bodyguard, in The Letter from the Cloud she's a cross-dressing scholar, who has a fake marriage with FL.
Both dramas have FL and ML clearing goals in a game environment. In Love Scenery ML helps FL learn a game. In Oops! Almost Broke Up ML and FL are stuck in a game like time loop. Both dramas have celebrity themes, too.

