To find a current list of all enterprise driver packages prepared by each manufacturer can take a while, so I am listing them here, for all major hardware vendors:

Driver package sources

HP: 

http://ftp.hp.com/pub/caps-softpaq/cmit/HP_Driverpack_Matrix_x64.html

Dell: 

https://www.dell.com/support/article/se/sv/sebsdt1/sln312414/dell-command-deploy-driver-packs-for-enterprise-client-os-deployment?lang=en

Lenovo: 

https://support.lenovo.com/cz/en/solutions/ht074984

Panasonic 

https://pc-dl.panasonic.co.jp/itn/drivers/driver_packages.html

Driver Automation Tool

Last but not least, let me mention that there is kind of a new tool, that automates driver pack download, import and distribution to Microsoft’s SCCM. The name of it is Driver Automation Tool.
Already it has lot’s of nifty little cool features and is still in ongoing development – but either way, once properly set up, it can save a lot of time and mindless clicking.
To make things even better, the tool is completely free.