Payware:

Christrains Stadler Flirt 3
https://www.railtraction.eu/train-simulator/multiple-units/electric-multiple-units/stadler-flirt3.html

TTB Szenariopakete 1&2
https://www.trainteam.berlin/produkte_szp01
https://www.trainteam.berlin/produkte_szp02

vR Falns 121
https://virtual-railroads.de/de/gueterwagen/99-fals-121.html

AP-Wetter
https://www.armstrongpowerhouse.com/index.php?route=product/product&path=36_88&product_id=197

Railtraction Lint 41
https://www.railtraction.eu/train-simulator/multiple-units/diesel-multiple-units/br-648.html

3DZUG KI-Pack
https://www.3dzug.de/product_info.php?info=p276_verkehrspack-gueterwagen.html

RSSLO Vectron 
http://www.rsslo.com/product/vectron-br-193-ac-acdc-2/

RSSLO BR 643
http://www.rsslo.com/product/br-643/

Freeware:

Flirt 3 Westfalenbahn-Repaint
https://rail-sim.de/forum/wsif/index.php/Entry/2803-Fan-Stadler-Flirt-3-WestfalenBahn/

Flirt 3 DB-Repaint
https://rail-sim.de/forum/wsif/index.php/Entry/2776-Denny140-Stadler-FLIRT3-DB-Regio-AG-vRot-1428/

Flirt 3 Eurobahn-Repaint
https://rail-sim.de/forum/wsif/index.php/Entry/4020-DFH-Flirt3-BR2429-Eurobahn-Keolis-Deutschland/

vR Falns 121-Repaintpack by RD
https://www.raildesigns.de/downloads/vr-falns-121-pack/

3DZUG KI-Repaints
https://rail-sim.de/forum/wsif/index.php/Entry/3362-3DZUG-KI-Gueterwaggon-Repaint-Pack-I/
https://www.raildesigns.de/downloads/3dzug-ki-repaints/

Vectron KI-Repaintpack by RD
https://rail-sim.de/forum/wsif/index.php/Entry/4535-VECTRON-KI-Repaintpack-Vol-1-by-RD/

BR 643 Eurobahn-Repaint
https://rail-sim.de/forum/wsif/index.php/Entry/2872-Denny140-Bombardiere-Talent-VT643-Eurobahn/

BR 648 Nord-Pack
https://rail-sim.de/forum/wsif/index.php/Entry/1336-BR-648-Nord-Pack-1-1/

TTB BR 145 Bonuspack
https://www.trainteam.berlin/index.php?seite=downloads&code=show_file&id_cat=39&id=83&cat_name=Bonuspacks