I’m looking for a zigbee led controller that I can control through home assistant or with a wired in button that works even if the controller isn’t connected to HA.
There is devise list to find what you need. On this page Zigbee2MQTT
Try this search: https://www.zigbee2mqtt.io/supported-devices/#s=led%20controller
Look at the models to see if there is a “push” connector. That is a button connection for off-line controlling.