KYB gas and Monroe
I had Konis on the front and Monroe air shocks on the rear of my 66 back in the 70's until such time as I put the car in clean, dry storage.
When I did the complete off-frame rotisserie restoration that was completed about a year ago, I purchased KYB gas shocks for both front and rear. I painted them with the correct factory OEM grey paint so they would look "correct".
The car drove, rode and handled very nicely, but I wasn't happy with the stance. As a result, I replaced the rears with Monroe air shocks so I could get the stance "just right".
Still drives, rides and handles great!
Of course, the Diamondback B.F. Goodrich Radial T/A Redlines help with that too!