Rumour has it that Brittany Ferries is looking at start a Plymouth – Portugal (Leixões) summer service for British motorist / holidaymakers. Because Portugal is on the UK’s green list, while Spain is still red. If it will happen the company will have to announce it soon to open the reservations.
https://ferryshippingnews.com/when-travellers-want-to-buy-a-ferry-service-that-doesnt-exist-yet/