I listen to binaural beats from the Insight meditation app. [which is free, and I recommend to anyone interested in just about any style of meditation) and I bought ‘the best binaural beats” by Jody Hatton, which is just one pulsing tone made by the difference in frequencies. I like the Jody Hatton beats, because there is no music or other sounds involved.
i would encourage anyone to try them. Not a cure for sure, but I’ve had some positive experiences with them.
You can also find many binaural beats on YouTube, which is where I think I first started to use them.
so content is not a problem, you can find plenty of free or cheap bin beats, but you absolutely need a good pair of headphones. If you listen without headphones, the beats won’t have any effect.