If there isn't more to it than simply searching for English title + the language or just the translated title, then I'm going to continue doing that.

In my case, I'm looking for stuff in Hungarian.

Look for Hungarian private torrent trackers.

Set the language in Radarr/Sonarr and wait.

And use culture-specific trackers. Most trackers, especially public ones, tend to be mostly English, Japanese for anime, and some major non-english films (e.g. Parasite).

in my case for spanish i search adding to the title ESP (for español) but its a lot harder and usually with only leechers. English its a lot easier sadly. But sometimes i got lucky and then i seed whatever i found, so i would say search 'Title HUN'