Crewe south yard is a no go without trespass.
Basford until a fortnight ago did tours for railway societies, but, the organiser has now retired. The farm with the public foot path to the boundary fence is gone, but, ther is an access road that looks like it will become a new entrance for the staff building at the south of the yard. That may get a few numbers on the yard.
Crewe Diesel end of platforms 1 and 12 and passing trains.
LNWR passing trains on the Stoke route and WCML as far as I'm aware.
Crewe Electric passing trains on the Chester route. Also the road outside and the industrial estate at the east end of the yard.