Project 7

It's not similar, but it's just another reality show being broadcast alongside this one. If you're interested in watching more, it's worth checking them out.

when i watched project 7, it reminded me of boys planet
- both are survival shows
- the goal is (to form a group of 9 members)

Another survival show airing concurrently, with almost the same format. Starlight Boys is closer in style to Boys Planet, while Project 7 has a few differences. However, both mostly follow similar lines.