Both dramas have the main leads who are growing up in poverty, while the second leads are rich, also school bullying is evident in both dramas.

The web series features young people experiencing love, relationships, and sexual desire. As the series progresses, characters grow both mentally and psychically.

Both are survival shows (boy group), and there are a lot of trainees trying to compete for the top 11.
The difference is that Produce Camp 2021 is a Chinese show, while Loud is a Korean show

Both are TV shows (variety shows) that show off Korean Culture. They both feature a lot of Kpop Idols and foreign cast members.

Watching When the Devils Calls Your Name really reminded me of The One and Only. Even though the story/plot is different, both dramas include a romance between multiple main/support characters and trying to escape and find a distraction from the inescapable.

Til Death Do Us Part and 76 Horror Bookstore are mini-series that have short episodes with different plots. Episodes are based on different stories that are dark and mysterious.

76 Horror Bookstore and Persona are mini-series that feature mysterious vibes. Both have 4 episodes that last about 25 minutes.

Similarities (Benton to LESA)
Both dramas involve love for beauty.
Short (in duration and episodes), fast-paced dramas.
Female-man romance.

My Romantic Some Recipe has a simple story that is also short and fast-paced drama including romance. Both are similar to me, people who watched Benton might find interest in My Romantic Some Recipe.