What materials are available in minority language(s) you know about?

The SIL Language and Culture Archives preserves and disseminates one of the broadest collections of materials developed for and by minority language communities worldwide. The collection preserves materials representing over 4,000 language varieties in 177 countries.

Look at what publications are in your language(s) here https://www.sil.org/resources/browse/subjectlanguage 

by scrolling down the page, selecting the first letter of a language, followed by a language name (or an alternate name by which your language is sometimes called).

(Thanks to Andy Warren-Rothlin for suggesting I post this here.)