Need Advice on Finding a VPN Service


I was looking for a reliable VPN because I need it for online privacy perspective. I was just waiting for Black Friday because the VPN providers offer a massive discount to their users. Even though I am buying it for the first time that’s why I am little bit confused what VPN is good for internet surfing, Netflix, Kodi and online streaming. Can anyone suggest me in this regard. I found a huge list of VPN providers in this website:

Why do you really need a VPN? Does it really protect your online information? Is it effective against hacking?