PAYWARE:
Köln Airport Link Route Addon (+ Köln Koblenz) : https://store.steampowered.com/app/678003/Train_Simulator_Kln_Airport_Link_Route_Extension_AddOn/
Mannheim Karlsruhe (für die 425) : https://store.steampowered.com/app/277768/Train_Simulator_The_Rhine_Railway_Mannheim__Karlsruhe_Route_AddOn/?l=german&cc=uk
BR 442 : https://store.steampowered.com/app/258656/Train_Simulator_DB_BR_442_Talent_2_EMU_AddOn/
VR 120 EL : http://www.virtual-railroads.de/db-br120-bpmbdzf.html
VR 111 Dosto EL : http://www.virtual-railroads.de/baureihe-111-dosto-expert-line.html
TTB Szenariopaket 2 München Augsburg : https://shop.halycon.de/produkte/bahnsimulationen/railworks-szenario-pack-vol-2---erweiterung-train-simulator-2015/479.html

FREEWARE: 
VR 120 EL Märklin Repaint : http://www.virtual-railroads.de/repaint-br120el-112.html
BR 425 NRW Update Pack : https://rail-sim.de/forum/wsif/index.php/Entry/1489-DTG-BR425-UpdatePack-DB-Regio-NRW/
BR 442 NEX Repaint  : https://www.railsimulator.net/wsif/index.php/Entry/185-NEX-Br442-Talent2/