Great recommendations, my favorite bd serie is Ralph Azham[1] from Lewis Trondheim. It’s great for readers of all ages. Boulet[2] is also a nice writer with the same kind of humor as the ones suggested here.

For teenagers there’s also a lot of good sagas published by Soleil[3] especially during the 90-00.

[1] https://www.goodreads.com/series/347300-ralph-azham

[2] https://bouletcorp.com/

[3] https://www.editions-soleil.fr/

Edit: Formatting