If you liked
Sekaiichi Hatsukoi: Onodera Ritsu no Baai
|
...then you might like
Joy
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The biggest similarity outside of being a BL manga: both have characters who act dismissive towards manga industry at first.
In Sekaiichi, MC had to change his editorial job from romance books to shoujo manga.
In Joy, important side character keeps shaming MC(a shoujo mangaka) for "not contributing to society in a meaningful way".
Both stories eventually develop those characters enough for them to stop dismissing the industry.