Pick just one.
Foam: cheap,easy and non messy to use,FAST and with the exact same results than any soap, cream, brush combo I have ever tried.
It's a great thing when you can get a four pass BBS every morning in five minutes flat.
There is a reason why foam had 80% of the market five years after its introduction in 1949 , while all men still used DE and SE razors.
With modern synthetic brushes, I can't really see how using a foam or gel is much quicker than using any soap or cream if you face lather tbh. Using Foam and Gel is messy and foam and a brush is not a good mix. it
A puck of soap, or a dab of cream, synthetic brush and face lathering will give you the best shave you can. Foams and gels without a brush do not get worked properly into the stubble.