Thank you for contacting Cypress Semiconductor.
The closest recommended replacement for M25P16-VMC6TG is S25FL064L. Datasheet link - https://www.cypress.com/file/316661/download
However, I would like to inform you that the exact same package dimension is not available for S25FL064L. I would like to request you to go through the Package Diagram section given in the component datasheet and let us know if you have any more queries.