Need K Drama Recommends:)

I love to watch History-Romance Kdramas. My favourite is Moon Lovers: Scarlet Heart Ryeo. But the Ending is very Sad for me. Can you recommend some romance/history Kdramas for me?  Thank you.

• Flower Crew: Joseon Marriage Agency
• The Emperor: Owner of the Mask
• The Scholar Who Walks the Night
• River Where the Moon Rises

The above historical romance K-Dramas should all have a happy ending if I'm not mistaken. C-Dramas also have a lot of good historical romance dramas as well, if you want, I can recommend you some?