Bridge

I learned how to play bridge back when I was a freshman in college. With maybe one or two exceptions, none of us knew anything about it, and learned by playing and also by reading books on how to play. I haven't played in many years, but I imagine that there are still many books that are good - and that now there must be beginner videos plus other online content. I think it really depends on which methods work best for you - I personally like books more than videos, but probably just because I grew up when videos weren't a thing.

There's a thread in POG that has had some world class players in it.