It will never as glorious as it was back in the day, but Milkdrop 3 was released in 2023 and works on any audio on your system.
Best thing about milkdrop was that you could use a microphone. We brought a projector and screen to a music festival (HSMF) in '04 and had a jam circle in our camp where the visualizations would respond to the music we were making. Definitely a hit way back when before that sort of stuff became boring.