Loud

Since Loud was a survival show to produce a boy band and I-Land was also a survival show to produce boy band named "Enhypen" so I find is similar since the object was to produce a boy group

In both shows the leads are socially awkward outcasts. They also idolize their popular love interest.

In both shows the leads are socially awkward outcasts. They also idolize their popular love interest.

In both shows the leads are socially awkward outcasts. They also idolize their popular love interest.

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 survival audition programs intending to create boy band idols........................................................