One of the challenges to implementing authentic resources into instruction for teachers is the time it takes to find them. Using a generic Google Search can be arduous and time-consuming.
Using a Google Search in the target language will render the best results. Some examples include:
Spain: https://www.google.es
France: https://www.google.fr
Germany: https://www.google.de
Italy: https://www.google.it
China: https://www.google.com.hk
Another tip for finding authentic resources is to search the topic or theme you are teaching followed by the type of resource you are looking for in the target language. For example, if you are searching for infographics for your German students on the topic of vacations, you would search “Urlaub infografik.”
Here are the results I received in that search:

In addition, searches can be done on You Tube using the topic/theme in the target language. For example, if you are looking for videos for the theme of “Back to School” in Spanish, enter “regreso a clases” into the search bar in YouTube. Here are the results I received:

“Work smarter, not harder” is an adage that most educators aspire to because time is always a challenge. In my experience, I have come to realize that language educators are part of a community that regularly practices “professional generosity.” Sharing and collaboration are valued in our profession. Many of our colleagues have posted the authentic resources they have gathered online through applications and websites that are public, the most popular of which is Pinterest.
First, if you are not a member of Pinterest and are interested in using it to find resources, I encourage you to become a member (at no cost).
Once you are on Pinterest, search for a topic or theme in the target language. Often you will find a whole Pinterest board that someone has put together on the topic or theme which contains multiple types of authentic resources. If I want to find authentic resources for one of the AP Global Themes for my French class, for example, I search in Pinterest for “Défis Mondiaux.” (Global Challenges). Here are the results of that search:

Once you have used Pinterest several times, you may find a “Pinner” that you want to “follow.” Following a Pinner means that you will regularly have access to his/her boards on Pinterest. For example, a great Pinner to follow on Pinterest if you are a novice level Spanish teacher is my good friend and colleague, Señora Sherrow:

Finally, I invite you to follow me on Pinterest: https://www.pinterest.com/grahnforlang/
I have created boards on general topics relating to language teaching (Resources for Elementary World Language, World Language Advocacy, World Language Pedagogy, Centers, etc.). I have also created Pinterest boards for authentic resources, either organized by text type (memes, infographics, commercials) or by theme.
Some of the themes include: Ecotourism, Back To School, Bullying, Tiny Houses, Immigration, Pets, Homelessness, Poverty and Hunger, and Natural Disasters.

For more links to authentic resources, you can go to: https://www.grahnforlang.com/authentic-resources.html