Enable or Disable Visualization on VLC Media Player
software recommendation - Which music player has visualizations? - Ask Ubuntu
Audio Visualizer with Html5 Audio Element | CSS Script
Remember the visualizer in Windows Media Player? I'd spend hours staring at it : r/nostalgia
Spectrolizer - Music Player + - Apps on Google Play
Amazon.com: Bluetooth 5.0 Transmitter and Receiver with LCD Display, 2 in 1 Portable Visualization Bluetooth Adapter, 3.5MM Wireless Bluetooth Adapter for PC,TV,Wired Speaker,Headphones and Car (Blue) : Electronics