may sound silly @StuF  but invest in good socks and innersoles for boots if you think you need them, they come with them these days, but can swap innersoles out ..(if need be)

..always need better sox tho ............last ones b4 super duper 80% wool ones sorta post work were loose top, cushion foot re keywords and try for as much wool as possible, can even double up on sox, get super thin all day sox fm Target etc, then put others over it. do Not want tight sox .. you'll work it out .............😁