Are there any good websites or platforms predicting where crypto will be in value 10 yrs from now?
No website or platform can predict how much crypto, especially bitcoin, will cost in the next 10 years. If you come across a site that says they can do it, that site is lying and you should leave the site immediately before they lie even more and fool you with what they are going to say.
Even an experienced crypto trader will never know what will happen to bitcoin. So you don't have to believe what other people say about crypto in the future. You better see for yourself what crypto travels like over time to decide what you need to do.