MAL Dubs is a userscript which labels more than 2000 German dubbed titles on MyAnimeList.net and adds a "Dub Only" filter to search, seasonal, company, top anime pages and your personal anime list.
Whether you watch dubs because you like to multitask while watching, because you have a visual impairment that makes subtitles difficult to read, or because you prefer hearing a performance in a language you speak, it can be hard to use MyAnimeList to find anime dubbed in German. This userscript fixes that problem.
This project is basically a copy of the English version with some slight adjustments: MAL-Dubs
Step 1: Install the Tampermonkey Script Manager extension
Step 2: Install the script
Clone the repository, if you have not already:
git clone --depth 1 https://github.com/Funami580/MAL-GerDubs.git
Otherwise, follow the normal procedure:
cd MAL-GerDubs
git submodule update --init --recursive --remote
cd gen_data
cargo build --release
./target/release/mal_gerdubs
Quote from MAL-Dubs (English version)
I personally add each title whenever I see a new dub announcement. Your support will help me to keep you up to date!

