In downtown Cocoa Beach Florida, there is a great surf shop, Quiet Flight.
They have been around for quite some time and have an extensive collection of boards for sale or rent. This is the shop where I rent an SUP board when I want to do some paddle boarding will in Cocoa Beach.
As is the case with many of the local surf shops, they have many vintage boards on display.
They have a pretty nice website and also carry an extensive line of gear and clothing.