Sometimes on the East Coast, it is called Doo-wop architecture for the genre of music that was popular at the same time.
Wawa announced last month they will build another store with the style at the Jersey Shore.
https://www.phillyvoice.com/wawa-wildwood-nj-doo-wop-gas-station-rite-aid/
https://www.flickr.com/photos/wallyg/53944838013
A popular retro chain in Delaware, The Charcoal Pit, has a lot of the vibes
Penn Fruits was a popular grocery store chain in the Delaware Valley for many decades. In the 50s and 60s, they built a number of identical stores that had a lot of the hallmark features.
A few of Philadelphia's libraries, municipal buildings, and recreational centers from the 50s and 60s have some of the characteristics, but fall more in the modernist bucket imo.
the most famous being the Love Park Welcome Center, aka Philly's Flying Saucer