You can’t move there anymore than people
can move and live here. You can visit, you can stay for extended periods of time and there are tricks for maximizing this, but getting the equivalent of a green card will require that you qualify under those conditions. Highly doubtful you’ll be able to get a remote worker visa but I’d still look into it and imagine you’d be subject to local taxes if you could

Marriage to a citizen in Europe will let you live there but that’s it. Basically have to go through the same process as US with a permanently residency permit, x # of years living there, THEN the citizenship process. And in the EU, it’s a royal pain. Some countries like Ireland and Finland have some lineage loopholes that simplify the process worth exploring.

Can your spouse land a job, any job over there, like working at an American school? Civilian gig at one of the military bases? Best option for long term - spouse lives and works there while you “visit often.” This keeps your income sheltered from EU taxes.

Certain countries in SE Asia are much more welcoming of you want to go that route.