Upvote:3
So you have two different factors at play, and I'll answer both of them
You don't need a visa or ESTA to travel to the US
Travelers from the UK were banned from entry under PP 10143 even those who don't need a visa for entry
However, the text of the proclamation says that the entry ban doesn't apply to:
(iii) any noncitizen who is the spouse of a U.S. citizen or lawful permanent resident; (You)
As recommended by the US Embassy in the UK, carry documentation to prove your exempt status (marriage certificate) and follow your destination state's requirements for quarantine