Here is a very useful bit of information from DavidA - you will find most of the best HQ versions are on official releases.
Here are the official ones and best locations:
View attachment 45901
And the ones that didn't make it officially:
View attachment 45903
This should help.
When I've got time, I will post some of these sources.
All thanks to DavidA for his hard work and diligence.
Regards,
FWD.