For beginners, I would recommend for beginners, is reading, opinion articles in the newspaper written by writers and, of course, read jyouth novel.s written

I recommend youby Laura Gallego.

Since ‘recommended for beginners’ is already established in the first sentence, you do not need to write ‘recommended’ again

To intermediate readers, I would recommend

I ‘would’ recommend will sound polite

Ffor example, Almudena Grandes, Rosa Montero, Sara Mesa, Elvira Lindo or Luna de Miguel.

These writers have easy and beautiful novels that´s talks about life, lovers... etc

Aand finally, to advanced readers I would recommend authors like Federico Garcia Lorca, Mercé Rododera, Cervantes and other authors from the 27 and 98 generation who have thae most beautiful novels from the literature of Spain.

Books to lLearn Spanish

Title capitalization rules

I would recommend for beginners, is to reading opinion articles in the newspaper written byfrom writers, and, of course, to read jouth(children's books / young adult novels).

Children's books would mean for small children, where "young adult" is an established category that would include teens.

I recommend you Laura Gallego.

This is more natural without the "you"

ToFor intermediate readers, I recommend

For example, Almudena Grandes, Rosa Montero, Sara Mesa, Elvira Lindo orand Luna de Miguel.

The "for example" is not needed and the sentence sounds better without it

These writers have easy-to-read and beautiful novels that´s talks about life, and lovers...

And finally, to advanced readers I would recommend authors like Federico Garcia Lorca, Mercé Rododera, Cervantes and other authors from the '27 and '98 generations who have thae most beautiful novels from thein Spanish literature of Spain.