I'd love it if we played him and walker together on the right in every big fixture like we did against arsenal.
Cancelo wide attacking wingback role, walker inside mid/centre back hybrid.
So with walker and the other two CBs you have a solid back 3, cancelo wide right, and then the left wide player has much less defensive responsibility so zinchenko, foden, Bernardo, etc. Can play there. Think foden played there against arsenal early on in the season.
That way you keep walker's defending and pace but you keep cancelo on his preferred right hand side and we don't have to worry about the fact our only actual leftback is finished and the other options are makeshift.