Thanks for your fast answer, I'm considering what you suggested.
What I will have a is a controlled number of tags (maybe 5 for each language) and I think that this can be sort directly on the template.
I've played with tags and managed to have a tag menu with a module and then open a tag as a list of articles blog type, and here comes my question... Is it possible to have it as the masonry Ja decor template? (I only have the option to apply the "masonry" option when creating a menu from a category and not with tags).
Thanks again for your answer and your time.