Recommandations

Both are about a divorced couple which meet again after years.
But in this drama she's the manager of a wedding department of a hotel and he's a groom. Then a murder case takes place.

both have ghosts bugging humans to relieve their grievances so they can ascend to heaven...

They've completely different plot, but they both have a quircky heroine and peculiar secondary character; while Surplus Princess is more on the fairytale and Sweden Laundry more like a normal rom-com, they have a similar feel

Both are about fashion, and have strong heroines; I do I do is about romance while Be Arrogant is more about friendship, but they give a similar vibe

both have good female characters who have a second chance and build the life they wanted

Same concept of the alien going into a dying man's body and falling in love with the woman.

They have a lot of the same feels. There is also the forbidden romance/secret identity thing going on. Cruel City is a bit darker than Healer.

young students in both films guide their teachers to a new life.

Although from two different countries, the feel is much the same; both crime mysteries that involve geniuses and a hint of romance. God's Quiz is more medical and main character mystery based, but they both have that amazing plot intrigue and touch of romance (though Subete ga F ni naru's romance feels a bit deeper over the course of the show). If you liked one you'll def. like the other :)

They are both adapted from shojo manga and about a normal girl who's pursued by the most handsome guy of the school.

In both series, the main character travels in time from the modern era to the Sengoku period and joins the court of Oda Nobunaga.

In both dramas the characters relive part of the day to make changes and avert danger or bad decisions.

Both about school life and the impact a teacher can have on the lives of the students

Stories have similar vibe. Both deal with school life and both female leads are out of place in their own ways (one as a student, the other as a teacher). Also as the background stories of the leads is slowly revealed, you gain an understanding into why the characters behave the way that they do.

Sequel of the Rurouni Kenshin .... A must watch before watching Rurouni Kenshin: The Legend Ends