There are a ton of use cases of why it's growing. We are seeing more places than ever accepting crypto, apps that help you invest, more exchanges, and the media has been picking up on this adoption. Blockchain forensic companies like Ciphertrace are working to provide proper compliance as adoption takes off
But still we never any big revolutionary acceptance over top cryptocurrencies so far. May be you believe Libra project might one of the projects in your view but still they are making it for their own profitability.
None of the users will accept the projects when there is no use, such scam projects only coming in IEO and ICOs.
I suggest to stick the top cryptos to stay safe, I do not bother whether it is growth or whatsoever.