Native German, fluent English, conversational Norwegian (and by extension passable Swedish; and I read 100% Danish but suck at speaking/listening comprehension), passable Dutch, Luxembourgish and French, and basic Chinese (mandarin).
Edit: And I passed Latin in high school (grades 5 through 10), so I do manage to read inscriptions in old buildings and churches, and pick up written Italian and Spanish because of it.
Yeah I wouldn’t want to live here again anymore, it’s not fun long term. I could imagine Taiwan on the other hand side, it’s pretty awesome. Though I could imagine the constant threat from China looming over you isn’t particularly nice.
Japan is also lovely, friend of mine just moved over last year. He married a Japanese woman he met in China though, that made it rather easy.
Personally I would consider Vietnam or Thailand and maybe Philippines long term (especially after retirement), mid term we are headed for Scandinavia first.