There are lots of live music places in Scalea along the lungomare (the street along the park near tower and then along the beach). They all open in the evenings from about 9 p.m. But for a proper night club experience you want to go to Acadie Club on outskirts of Scalea. They do have buses running from the center. You’ll be surprised how cool it is.
https://www.facebook.com/acadieclubofficial/