Oh nice, I used to be a passionate Foobar2000 user as well back in the day! Can't say I have a Mac alternative nowadays though, I'm using Navidrome[0] with all my music stored on a cheap VPS, this way I can play the music from wherever (including mobile[1]).

And FastStone Image Viewer is also familiar. :) Seems like I've turned lazy (and "cloudy") in recent years, Google Photos is just so convenient.

[0] https://www.navidrome.org/ [1] I'm using Subtracks on Android https://play.google.com/store/apps/details?id=com.subtracks