Praiano is on the SITA Sorrento-Salerno line, which will allow you to travel to all of the towns along the Amalfi Coast. Tickets can be purchased at any tabacchi. Remember to validate the ticket once you board the bus or else you risk the chance of being fined if you are caught without a validated ticket.
Maiori
Minori
Ravello
Amalfi
Tramonti
Conca dei Marini
Furore
Positano
Capri
Pompeii
Herculaneum