What a modern mass-escort programme might build

Which navy is most likely to begin a modern mass-escort programme, and what type of ship would it build?

Probably the United States, with a light frigate; an Italian programme using patrol vessels or corvettes is also suggested in light of the PPA design.

The United States is considered the most likely navy to begin a mass-escort programme because it has the largest immediate need. A light frigate is suggested as the likely choice, with enough size and survivability to justify fitting the required equipment. Other navies could try offshore patrol vessels or corvettes. Italy's PPA programme is offered as a reason to watch for an Italian approach along those lines.