i am currently using ghost vpn its working perfect for me.
1) you can use http://playit.pk for playing youtube videos (best and secure option)
2) free vpn from various sites for example http://myvpn.eu , http://www.vpnbook.com/ , http://freevpnaccess.com/ (nice but insecure option)
3) hotspotshield its going slow now a days
4) A webproxy like >> http://www.vpnbook.com/webproxy <
chalo isi baat par japhii and pappi?
Zemate plugin of google is the best one, with no adds you can use your utube much confortable
A.O.A Dosto there is one more site which is the alternate of YouTube http://ytplay.pk i like this more than other tubes, no need any VPN just play any YouTube Video