Payware:

vR BR 101 EL
https://virtual-railroads.de/de/zug-pakete-el/58-db-br101-intercity-expertline.html

TTB Szenariopakete 1 + 2 + 3
https://www.trainteamberlin-shop.de/rw-szenariopacks/

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

TSG BR 425
https://www.3dzug.de/product_info.php?language=de&info=p413_br-425-pro-line.html

DTG BR 442
https://store.steampowered.com/app/258656/Train_Simulator_DB_BR_442_Talent_2_EMU_AddOn/?l=german

Railtraction Twindexx 
https://www.railtraction.eu/db-regio-twindexx.html

RSSLO BR 642
https://www.rsslo.com/product/desiro-obb-5022br-642/

vR Taschenwagen
https://virtual-railroads.de/de/gueterwagen/95-sdggmrss.html

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

Freeware:
3DZUG KI-Repaints by RD
https://www.raildesigns.de/downloads/3dzug-ki-repaints/

vR BR 101 042 Repaint
https://rail-sim.de/forum/wsif/index.php/Entry/3174-Fan-vR-BR-101-042-0-ECO2PHANT/

CD EC-Wagen Pack
https://ofpmafia.eu/files/file/1678-osobní-vozy-xmz/

CD Bdmpee
https://ofpmafia.eu/files/file/1664-cd-vagon-bdmpee/

Waggonz Sggrss
https://rail-sim.de/forum/wsif/index.php/Entry/4098-Waggonz-SGGRSS-v1-2/

Sggrss Repaints
https://rail-sim.de/forum/wsif/index.php/Entry/1052-SGGRSS-Extra-Container-Pack/
https://www.railsimulator.net/wsif/index.php?entry/496-waggonz-sggrss-repaint-pack-vol-1-by-rail-designs/

DTG 442 S-Bahn Mitteldeutschland KI-Repaint
https://www.railsimulator.net/wsif/index.php?entry/779-dtg-bombardier-talent-2-vbb-s-bahn-md-ki-version-by-rd/

TTB Pluspacks BR 218 + BR 145
https://www.trainteam.berlin/index.php?seite=downloads&code=show_cat&id_cat=39&cat_name=Bonuspacks

vR Taschenwagen Repaints by RD
https://www.raildesigns.de/downloads/vr-sdggmrss-pack-2-2/

BR 294 extrem schmutzig Repaint
https://rail-sim.de/forum/wsif/index.php/Entry/4986-294-DB-stark-gebraucht-Charmed-Life/