From what I understood you are trying to get access to international languages media.
Omicron's newzlazer, like easynews search, is useful because it can deobfuscate some stuff that you can't find manually in some indexers, but if you are looking for international content, what will matter for you are what indexers you have access. Here are some options:
- SceneNZBs - specially for content in German.
- Dog - Good (better than usual at least) curated, and sometimes unique, international media source.
- Finder - Better than usual source for international media.
- Su - You probably already notices that, but also good for international languages.
- Ninja - Like dog, has some unique content.
- WtF[nZb] - (not to be confused with the other one with similar name) Good for international releases but very hard to interact with (complicated search and limited API). Easynews' Web Search somehow deobfuscate some of their releases. Some Scandinavian content.
- DrunkenSlug - Also good for internation releases.
- Spotweb (clubnzb, nzbstars) - Good for Dutch content.
Search for "Non-Mainstream Movies Statistics in Usenet Indexers" at german google should find you a analysis comparing availability of hundreds of releases separated in about 30 languages (it is a handmade study, not some crazy prowlarr stats).