Same ML. and same level of production - budget wise and level of acting of main characters. Both enjoyable.
No similarity in story, but same female lead and 2 very good looking male leads. It's similar in terms of having eye candy casts and males showing some abs:)
Similar story setting although different plot. Female lead in both dramas act mature and not annoying. RAR has a darker, more serious theme and not so much focused on romance. Not sure what else to say to come up with 100 words so they'll take the recommedation. Nevertheless, I recommend that you try RAR to see if it's your cup of tea.
The story of LuZhen closely resembles that of Yanxi Palace because both FLs started as a palace servants and climbed their way to the top using their skills. Both FLs are smart and able to stand up for themselves.