https://youtu.be/owMNL3FgjqAI've lived in Sweden, Denmark, Germany, Switzerland, France, and Italy. I don't think there's a European country west of the Iron Curtain I haven't visited before emigrating to the United States. Portugal is the most affordable place to live for a non-EU passport holder (again, I exclude Eastern Europe which is a totally different animal). It's a great retirement destination for American expats because they can get 10-year tax free residency. It's a horrible place having to look for work, same as Spain, Italy, Greece, etc., but that doesn't apply to you. In addition, Portuguese is a difficult language to acquire.
Hot tip from me, worth spending the hour on the screen. It will boggle your mind:
https://youtu.be/illApgaLgGAI don't know how much time you spent in Portugal. Sure, Lisbon and Porto are great cities, but even the Agave can't hold a candle to the Costa del Sol or the Cote d'Azure. If I had to pick a retirement destination in Europe for a low income retiree, Portugal would be on top of my list. If said retiree has a bit more money, I'd look into France or Italy instead. But even with 2 EU passports in addition to my US one, I wouldn't want to live in Europe again. A vacation home at Lake Como perhaps, but all year? Nope.