Lots of awesome links in the megathread, but I have yet to find a good source for content in languages other than English. Specifically movies/series in German, either as the original VO, or dubbed. Are there any torrent or DDL sites where it is easy to find German stuff?
If you know the Usenet, I can recommend https://scenenzbs.com/ You will need a downloader and an Usenet provider, besides the indexer I shared. It can be linked with *arr similar to torrent downloader/indexer