If you have an Irish grandparent you can get a passport. Lots of work here and Americans are welcome.
Otherwise work visas that turn into residency aren’t difficult to come by with sponsorship and it’s not the kind of sponsorship that makes you a slave.
Almost anywhere in Europe is the answer. My son did his masters in Denmark and never learned Danish. He lives in Germany now and speaks fuck all German.
Once in the Netherlands, after losing my glasses I asked an optician if he could speak English and he was thoroughly insulted.
Britain and Ireland are both native English.