Freeware:
BR 612 ZZA Mod: https://rail-sim.de/forum/wsif/index.php/Entry/2019-STWS-BR-612-ZZA-Mod/#images
Allgäubahn Regenerated: https://rail-sim.de/forum/wsif/index.php/Entry/5207-Allg%C3%A4ubahn-Regenerated-v1-0/
ALEX: https://rail-sim.de/forum/wsif/index.php/Entry/1392-ALEX-train/
SBB Wagen: https://railworks-austria.at/index.php/downloads/wagen/download/12-personenwagen/190-sbb-ec-packet
ÖBB Wiesel Dosto: https://railworks-austria.at/index.php/downloads/wagen/download/12-personenwagen/206-oebb-doppelstockwagen-wiesel

Payware:
RSSLO BR 612: https://www.rsslo.com/product/br-612/
RSSLO Allgäubahn: https://www.rsslo.com/product/allgaubahn-route/
Chris Trains RS1: https://www.christrains.com/en/ts_product_stadlerRS1.html
RT BR 628_2: https://www.railtraction.eu/br-6282.html
TTB München-Augsburg: https://www.trainteam.berlin/produkte_szp02
Just Trains Railjet: https://www.justtrains.net/product/rwa-railjet-advanced
RSSLO ÖBB 4024: https://www.rsslo.com/product/talent-obb-4024/