The selection of materials, all of which can be downloaded or consulted online, can be based on various criteria: the objectives expressed by the FREPA descriptors of Knowledge, Attitudes and Skills, educational levels, themes, the type of pluralistic approach, the language of the teacher's material and the language of the student's material. For materials aimed at learning a particular language, the selection can also be made based on the target language and CEFR level(s).
It is advisable not to choose too many criteria at once, as this may limit the number of available materials. In some cases, it is possible to a material that does not meet all your needs can be quickly adapted.
As with any proposal for a teaching activity, it is important to tailor the material to better suit your specific teaching/learning context.