For head shaving we are getting into an area that I have absolutely no knowledge of. That said when I used to shave with a DE my mainstay was the Merkur 37C slant and then later the Merkur 39C long handled slant. For a vintage Gillette I lean towards the British Aristocrat or maybe the HD Rocket. Just my personal preferences. For head shaving I'm thinking a Gillette adjustable might be more desirable or maybe a Merkur Vision.