Communities like the or JDA official servers often have channels dedicated to Lavalink. Sometimes members will share their spare nodes.
Public nodes can go offline without notice if the provider runs out of funds or faces a DDoS attack. lavalink hosting free link
Many developers maintain public Lavalink nodes that anyone can use for free. Communities like the or JDA official servers often
These are "plug-and-play" links where you just enter the host, port, and password into your bot's configuration. HeavenCloud lavalink hosting free link