You can simply search for a local hazard material or battery cleanup/pickup event. Most dumps will take them. But throwing them in your regular trash causes risk of fire to your house, garbage truck, and the dump. I hold onto all my old disposables to take to the dump.
There used to be a massive market of regular battery/tank style vapes and juices. Around 2020 they started cracking down on flavored vaping stuff and it killed almost the entire market of vapes at the time, and left a void that is only filled now by countless disposables companies with strong as hell 5% juice. There’s simply no good options anymore if you don’t want a high concentrate disposable