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I've been using foobar2000 (win) or audacious (linux) as a replacement for winamp for close to a decade.

do you know something like foobar2000 but for mac?

Well there's Foobar for Mac in beta [1] but I really like Vox player [2].

Not quite as configurable as Foobar, but on Mac I always recommend Swinsian: https://swinsian.com/