-What about promoting your website into the certain groups like cryptocurrency trading groups or something like this? If you are buiilding a product and you must also know which will become your targed and so if that's related to the crypto market sentiment website and you must be actively become members into the various trading groups. I guess there are so many members are also actively looking for this kind of website. You can promote your website and at the same time looking for the feedback from the various members there.
This will make your website even better and better.