I have found how to do it with a blog post. Probably it is not the best way, however, if somebody has any other suggestions for the following code, please, feel free.
First, as everybody mentioned in this thread, the head/bottom is needed.
In the Head/Bottom content snippet we have the following code:
{% include 'Meta Tags' %}
Then, inside that Web Template we have the following:
{% assign blogposts = blogs.posts | all %}
{% for eachblogpost in blogposts %}
{% if eachblogpost.url == {{request.path}} %}
{% assign post = eachblogpost %}
{% endif %}
{% endfor %}
Once you have assigned the post in the variable we have retrieved the attributes we may need from the adx_blogpost (we created some custom fields) and we are retrieving them with fetchxml liquid.
Hopefully, somebody can get some light on this problem, or if you have some better practices, please, feel free as the iteration we are doing for the last I am totally convinced there is some other way, however, I couldn't find the solution.
