The Wheeler school has a small gallery: http://www.chazangallery.org/

And AS220 of course:

https://as220.org/galleries/about/

PCUT ultimate frisbee! https://pickupultimate.com/games/pcut

It's not necessarily true that there are only benefits at distances where you're "basically tailgating". For example this paper found a noticeable benefit for two tractor trailers even at 20 meters distance.

20 meters might be a little closer than "optimal safety", but in real life on busy highways many people are following that close behind or closer. This paper found the biggest benefit at 60 feet but even at 160 feet there were significant benefits.

https://www.providenceri.gov/planning/north-main-street-corridor-revitalization-study/