EXO Next Door is an idol drama as is Secret Love. EXO Next Door stars the members of boy KPop group EXO, Secret Love is the KPop girl group KARA. They star in a story made up to promote the group. While they use their own names and the story is about them, it has nothing to do with their private lives.
He is Psychometric stars Park Jin Young (of GOT7 and JJ Project) but is a normal drama as he plays someone not 'himself' and wasn't created to promote his groups. That said, I am now a fan of GOT7 because of him. Looking into JJ Project as well :)
Sorry if that first paragraph was worded awkwardly; hope it still makes sense.