I'm surprised that AIMP hasn't been mentioned yet. It's also a great old school audio player that was released back in 2006. I transitioned to it when Winamp development was fizzling out. Not sure when that was but I've been using it for a long time. With the 'Pandemic' skin it looks like classic Winamp and has support for visualizations and many other features people tended to like from Winamp.
https://www.aimp.ru/
https://en.wikipedia.org/wiki/AIMP