Either the Ambassador, which I carried for years, or the Executive which I recently learned, bought and now carry. I always carry a larger folder clipped into my opposite pocket. I use the toothpick, tweezers, nail file, and scissors far more than the blades of a SAK. I do keep a couple of old Champion Plus models in each vehicle and have Cadets, Pioneers, Farmers, Climbers, Classics, OHTs, and a few other assorted SAKs but none would be an only for me. I don't need to use a SAK to turn screws very often and can't think of the last time I did.
If there is a Cellidor SAK with a blade, nail file, scissors, cork screw, and awl that wasn't too big or loaded with other tools, I'd love to know the model.
Edited to add: Looks like the Evolution S14 models come pretty close but has the openers. Might try one for fun.